---
title: "PATCH /v1/projects/{projectsId}/locations/{locationsId}/cachedContents/{cachedContentsId}"
method: PATCH
path: "/v1/projects/{projectsId}/locations/{locationsId}/cachedContents/{cachedContentsId}"
tags: ["projects"]
---

# PATCH /v1/projects/{projectsId}/locations/{locationsId}/cachedContents/{cachedContentsId}

`PATCH /v1/projects/{projectsId}/locations/{locationsId}/cachedContents/{cachedContentsId}`

## Request

- Base URL: `https://aiplatform.googleapis.com`
- URL: `https://aiplatform.googleapis.com/v1/projects/{projectsId}/locations/{locationsId}/cachedContents/{cachedContentsId}`
- Auth: OAuth 2 and OAuth 2
  - Implicit: `https://accounts.google.com/o/oauth2/auth`
  - Scopes: `https://www.googleapis.com/auth/cloud-platform`
  - Authorization code: `https://accounts.google.com/o/oauth2/auth`
  - Token URL: `https://accounts.google.com/o/oauth2/token` scopes: `https://www.googleapis.com/auth/cloud-platform`
- TypeScript: <https://skmtc.dev/google/apis/aiplatform/docs/v1/projects/:projectsId/locations/:locationsId/cachedContents/:cachedContentsId/patch.ts> (a function with typed inputs; its response is checked against the schema)

Updates cached content configurations

## Path parameters

- `projectsId` string, required
- `locationsId` string, required
- `cachedContentsId` string, required

## Query parameters

- `updateMask` string, google-fieldmask

## Request body

- GoogleCloudAiplatformV1CachedContent: A resource used in LLM queries for users to explicitly specify what to cache and how to cache.
  - `contents` GoogleCloudAiplatformV1Content[]: Optional. Input only. Immutable. The content to cache
    - `parts` GoogleCloudAiplatformV1Part[]: Required. A list of Part objects that make up a single message. Parts of a message can have different MIME types. A Content message must have at least one Part.
      - `audioTranscription` GoogleCloudAiplatformV1AudioTranscription: The transcription of an audio part. For multi-speaker audio, each speaker segment is a separate `Part` with its own `AudioTranscription` carrying the `speaker_label`.
        - `speakerLabel` string: Optional. A label identifying the speaker of this audio segment (e.g. `spk_1`, `spk_2`). Present when `diarization` is set.
        - `text` string: Required. The transcription text of this audio segment.
        - `words` GoogleCloudAiplatformV1AudioTranscriptionWordInfo[]: Optional. Detailed word-level transcriptions and timing details. Present when `word_timestamp` is set.
          - `endOffset` string, google-duration: Optional. End offset in time of the word relative to the start of the audio.
          - `startOffset` string, google-duration: Optional. Start offset in time of the word relative to the start of the audio.
          - `word` string: Required. Transcript of the word.
      - `codeExecutionResult` GoogleCloudAiplatformV1CodeExecutionResult: Result of executing the ExecutableCode. Generated only when the `CodeExecution` tool is used.
        - `id` string: Optional. The identifier of the `ExecutableCode` part this result is for. Only populated if the corresponding `ExecutableCode` has an id.
        - `outcome` 'OUTCOME_UNSPECIFIED' | 'OUTCOME_OK' | 'OUTCOME_FAILED' | 'OUTCOME_DEADLINE_EXCEEDED': Required. Outcome of the code execution.
        - `output` string: Optional. Contains stdout when code execution is successful, stderr or other description otherwise.
      - `executableCode` GoogleCloudAiplatformV1ExecutableCode: Code generated by the model that is meant to be executed, and the result returned to the model. Generated when using the `CodeExecution` tool, in which the code will be automatically executed, and a corresponding CodeExecutionResult will also be generated.
        - `code` string: Required. The code to be executed.
        - `id` string: Optional. Unique identifier of the `ExecutableCode` part. The server returns the `CodeExecutionResult` with the matching `id`.
        - `language` 'LANGUAGE_UNSPECIFIED' | 'PYTHON': Required. Programming language of the `code`.
      - `fileData` GoogleCloudAiplatformV1FileData: URI-based data. A FileData message contains a URI pointing to data of a specific media type. It is used to represent images, audio, and video stored in Google Cloud Storage.
        - `displayName` string: Optional. The display name of the file. Used to provide a label or filename to distinguish files. This field is only returned in `PromptMessage` for prompt management. It is used in the Gemini calls only when server side tools (`code_execution`, `google_search`, and `url_context`) are enabled.
        - `fileUri` string: Required. The URI of the file in Google Cloud Storage.
        - `mimeType` string: Required. The IANA standard MIME type of the source data.
      - `functionCall` GoogleCloudAiplatformV1FunctionCall: A predicted FunctionCall returned from the model that contains a string representing the FunctionDeclaration.name and a structured JSON object containing the parameters and their values.
        - `args` object: Optional. The function parameters and values in JSON object format. See FunctionDeclaration.parameters for parameter details.
        - `id` string: Optional. The unique id of the function call. If populated, the client to execute the `function_call` and return the response with the matching `id`.
        - `name` string: Optional. The name of the function to call. Matches FunctionDeclaration.name.
        - `partialArgs` GoogleCloudAiplatformV1PartialArg[]: Optional. The partial argument value of the function call. If provided, represents the arguments/fields that are streamed incrementally.
          - `boolValue` boolean: Optional. Represents a boolean value.
          - `jsonPath` string: Required. A JSON Path (RFC 9535) to the argument being streamed. https://datatracker.ietf.org/doc/html/rfc9535. e.g. "$.foo.bar[0].data".
          - `nullValue` 'NULL_VALUE': Optional. Represents a null value.
          - `numberValue` number, double: Optional. Represents a double value.
          - `stringValue` string: Optional. Represents a string value.
          - `willContinue` boolean: Optional. Whether this is not the last part of the same json_path. If true, another PartialArg message for the current json_path is expected to follow.
        - `willContinue` boolean: Optional. Whether this is the last part of the FunctionCall. If true, another partial message for the current FunctionCall is expected to follow.
      - `functionResponse` GoogleCloudAiplatformV1FunctionResponse: The result output from a FunctionCall that contains a string representing the FunctionDeclaration.name and a structured JSON object containing any output from the function is used as context to the model. This should contain the result of a `FunctionCall` made based on model prediction.
        - `id` string: Optional. The id of the function call this response is for. Populated by the client to match the corresponding function call `id`.
        - `name` string: Required. The name of the function to call. Matches FunctionDeclaration.name and FunctionCall.name.
        - `parts` GoogleCloudAiplatformV1FunctionResponsePart[]: Optional. Ordered `Parts` that constitute a function response. Parts may have different IANA MIME types.
          - `fileData` GoogleCloudAiplatformV1FunctionResponseFileData: URI based data for function response.
            - `displayName` string: Optional. Display name of the file data. Used to provide a label or filename to distinguish file datas. This field is only returned in PromptMessage for prompt management. It is currently used in the Gemini GenerateContent calls only when server side tools (code_execution, google_search, and url_context) are enabled.
            - `fileUri` string: Required. URI.
            - `mimeType` string: Required. The IANA standard MIME type of the source data.
          - `inlineData` GoogleCloudAiplatformV1FunctionResponseBlob: Raw media bytes for function response. Text should not be sent as raw bytes, use the 'text' field.
            - `data` string, byte: Required. Raw bytes.
            - `displayName` string: Optional. Display name of the blob. Used to provide a label or filename to distinguish blobs. This field is only returned in PromptMessage for prompt management. It is currently used in the Gemini GenerateContent calls only when server side tools (code_execution, google_search, and url_context) are enabled.
            - `mimeType` string: Required. The IANA standard MIME type of the source data.
        - `response` object: Required. The function response in JSON object format. Use "output" key to specify function output and "error" key to specify error details (if any). If "output" and "error" keys are not specified, then whole "response" is treated as function output.
        - `scheduling` 'SCHEDULING_UNSPECIFIED' | 'SILENT' | 'WHEN_IDLE' | 'INTERRUPT': Optional. Specifies how the response should be scheduled in the conversation. Only applicable to NON_BLOCKING function calls, is ignored otherwise. Defaults to WHEN_IDLE.
      - `inlineData` GoogleCloudAiplatformV1Blob: A content blob. A Blob contains data of a specific media type. It is used to represent images, audio, and video.
        - `data` string, byte: Required. The raw bytes of the data.
        - `displayName` string: Optional. The display name of the blob. Used to provide a label or filename to distinguish blobs. This field is only returned in `PromptMessage` for prompt management. It is used in the Gemini calls only when server-side tools (`code_execution`, `google_search`, and `url_context`) are enabled.
        - `mimeType` string: Required. The IANA standard MIME type of the source data.
      - `mediaResolution` GoogleCloudAiplatformV1PartMediaResolution: per part media resolution. Media resolution for the input media.
        - `level` 'MEDIA_RESOLUTION_UNSPECIFIED' | 'MEDIA_RESOLUTION_LOW' | 'MEDIA_RESOLUTION_MEDIUM' | 'MEDIA_RESOLUTION_HIGH' | 'MEDIA_RESOLUTION_ULTRA_HIGH': The tokenization quality used for given media.
      - `speechMetadata` GoogleCloudAiplatformV1SpeechMetadata: Structured Metadata Sub-Message for Part
        - `speaker` string: Optional. Identifies which speaker is speaking this turn.
        - `style` string: Optional. Natural language description of the vocal style (e.g., "cheerful").
      - `text` string: Optional. The text content of the part. When sent from the VSCode Gemini Code Assist extension, references to @mentioned items will be converted to markdown boldface text. For example `@my-repo` will be converted to and sent as `**my-repo**` by the IDE agent.
      - `thought` boolean: Optional. Indicates whether the `part` represents the model's thought process or reasoning.
      - `thoughtSignature` string, byte: Optional. An opaque signature for the thought so it can be reused in subsequent requests.
      - `videoMetadata` GoogleCloudAiplatformV1VideoMetadata: Provides metadata for a video, including the start and end offsets for clipping and the frame rate.
        - `endOffset` string, google-duration: Optional. The end offset of the video.
        - `fps` number, double: Optional. The frame rate of the video sent to the model. If not specified, the default value is 1.0. The valid range is (0.0, 24.0].
        - `startOffset` string, google-duration: Optional. The start offset of the video.
    - `role` string: Optional. The producer of the content. Must be either 'user' or 'model'. If not set, the service will default to 'user'.
  - `createTime` string, google-datetime: Output only. Creation time of the cache entry.
  - `displayName` string: Optional. Immutable. The user-generated meaningful display name of the cached content.
  - `encryptionSpec` GoogleCloudAiplatformV1EncryptionSpec: Represents a customer-managed encryption key specification that can be applied to a Vertex AI resource.
    - `kmsKeyName` string: Required. Resource name of the Cloud KMS key used to protect the resource. The Cloud KMS key must be in the same region as the resource. It must have the format `projects/{project}/locations/{location}/keyRings/{key_ring}/cryptoKeys/{crypto_key}`.
  - `expireTime` string, google-datetime: Timestamp of when this resource is considered expired. This is *always* provided on output, regardless of what was sent on input.
  - `model` string: Immutable. The name of the `Model` to use for cached content. Currently, only the published Gemini base models are supported, in form of projects/{PROJECT}/locations/{LOCATION}/publishers/google/models/{MODEL}
  - `name` string: Immutable. Identifier. The server-generated resource name of the cached content Format: projects/{project}/locations/{location}/cachedContents/{cached_content}
  - `systemInstruction` GoogleCloudAiplatformV1Content: The structured data content of a message. A Content message contains a `role` field, which indicates the producer of the content, and a `parts` field, which contains the multi-part data of the message.
    - `parts` GoogleCloudAiplatformV1Part[]: Required. A list of Part objects that make up a single message. Parts of a message can have different MIME types. A Content message must have at least one Part.
      - `audioTranscription` GoogleCloudAiplatformV1AudioTranscription: The transcription of an audio part. For multi-speaker audio, each speaker segment is a separate `Part` with its own `AudioTranscription` carrying the `speaker_label`.
        - `speakerLabel` string: Optional. A label identifying the speaker of this audio segment (e.g. `spk_1`, `spk_2`). Present when `diarization` is set.
        - `text` string: Required. The transcription text of this audio segment.
        - `words` GoogleCloudAiplatformV1AudioTranscriptionWordInfo[]: Optional. Detailed word-level transcriptions and timing details. Present when `word_timestamp` is set.
          - `endOffset` string, google-duration: Optional. End offset in time of the word relative to the start of the audio.
          - `startOffset` string, google-duration: Optional. Start offset in time of the word relative to the start of the audio.
          - `word` string: Required. Transcript of the word.
      - `codeExecutionResult` GoogleCloudAiplatformV1CodeExecutionResult: Result of executing the ExecutableCode. Generated only when the `CodeExecution` tool is used.
        - `id` string: Optional. The identifier of the `ExecutableCode` part this result is for. Only populated if the corresponding `ExecutableCode` has an id.
        - `outcome` 'OUTCOME_UNSPECIFIED' | 'OUTCOME_OK' | 'OUTCOME_FAILED' | 'OUTCOME_DEADLINE_EXCEEDED': Required. Outcome of the code execution.
        - `output` string: Optional. Contains stdout when code execution is successful, stderr or other description otherwise.
      - `executableCode` GoogleCloudAiplatformV1ExecutableCode: Code generated by the model that is meant to be executed, and the result returned to the model. Generated when using the `CodeExecution` tool, in which the code will be automatically executed, and a corresponding CodeExecutionResult will also be generated.
        - `code` string: Required. The code to be executed.
        - `id` string: Optional. Unique identifier of the `ExecutableCode` part. The server returns the `CodeExecutionResult` with the matching `id`.
        - `language` 'LANGUAGE_UNSPECIFIED' | 'PYTHON': Required. Programming language of the `code`.
      - `fileData` GoogleCloudAiplatformV1FileData: URI-based data. A FileData message contains a URI pointing to data of a specific media type. It is used to represent images, audio, and video stored in Google Cloud Storage.
        - `displayName` string: Optional. The display name of the file. Used to provide a label or filename to distinguish files. This field is only returned in `PromptMessage` for prompt management. It is used in the Gemini calls only when server side tools (`code_execution`, `google_search`, and `url_context`) are enabled.
        - `fileUri` string: Required. The URI of the file in Google Cloud Storage.
        - `mimeType` string: Required. The IANA standard MIME type of the source data.
      - `functionCall` GoogleCloudAiplatformV1FunctionCall: A predicted FunctionCall returned from the model that contains a string representing the FunctionDeclaration.name and a structured JSON object containing the parameters and their values.
        - `args` object: Optional. The function parameters and values in JSON object format. See FunctionDeclaration.parameters for parameter details.
        - `id` string: Optional. The unique id of the function call. If populated, the client to execute the `function_call` and return the response with the matching `id`.
        - `name` string: Optional. The name of the function to call. Matches FunctionDeclaration.name.
        - `partialArgs` GoogleCloudAiplatformV1PartialArg[]: Optional. The partial argument value of the function call. If provided, represents the arguments/fields that are streamed incrementally.
          - `boolValue` boolean: Optional. Represents a boolean value.
          - `jsonPath` string: Required. A JSON Path (RFC 9535) to the argument being streamed. https://datatracker.ietf.org/doc/html/rfc9535. e.g. "$.foo.bar[0].data".
          - `nullValue` 'NULL_VALUE': Optional. Represents a null value.
          - `numberValue` number, double: Optional. Represents a double value.
          - `stringValue` string: Optional. Represents a string value.
          - `willContinue` boolean: Optional. Whether this is not the last part of the same json_path. If true, another PartialArg message for the current json_path is expected to follow.
        - `willContinue` boolean: Optional. Whether this is the last part of the FunctionCall. If true, another partial message for the current FunctionCall is expected to follow.
      - `functionResponse` GoogleCloudAiplatformV1FunctionResponse: The result output from a FunctionCall that contains a string representing the FunctionDeclaration.name and a structured JSON object containing any output from the function is used as context to the model. This should contain the result of a `FunctionCall` made based on model prediction.
        - `id` string: Optional. The id of the function call this response is for. Populated by the client to match the corresponding function call `id`.
        - `name` string: Required. The name of the function to call. Matches FunctionDeclaration.name and FunctionCall.name.
        - `parts` GoogleCloudAiplatformV1FunctionResponsePart[]: Optional. Ordered `Parts` that constitute a function response. Parts may have different IANA MIME types.
          - `fileData` GoogleCloudAiplatformV1FunctionResponseFileData: URI based data for function response.
            - `displayName` string: Optional. Display name of the file data. Used to provide a label or filename to distinguish file datas. This field is only returned in PromptMessage for prompt management. It is currently used in the Gemini GenerateContent calls only when server side tools (code_execution, google_search, and url_context) are enabled.
            - `fileUri` string: Required. URI.
            - `mimeType` string: Required. The IANA standard MIME type of the source data.
          - `inlineData` GoogleCloudAiplatformV1FunctionResponseBlob: Raw media bytes for function response. Text should not be sent as raw bytes, use the 'text' field.
            - `data` string, byte: Required. Raw bytes.
            - `displayName` string: Optional. Display name of the blob. Used to provide a label or filename to distinguish blobs. This field is only returned in PromptMessage for prompt management. It is currently used in the Gemini GenerateContent calls only when server side tools (code_execution, google_search, and url_context) are enabled.
            - `mimeType` string: Required. The IANA standard MIME type of the source data.
        - `response` object: Required. The function response in JSON object format. Use "output" key to specify function output and "error" key to specify error details (if any). If "output" and "error" keys are not specified, then whole "response" is treated as function output.
        - `scheduling` 'SCHEDULING_UNSPECIFIED' | 'SILENT' | 'WHEN_IDLE' | 'INTERRUPT': Optional. Specifies how the response should be scheduled in the conversation. Only applicable to NON_BLOCKING function calls, is ignored otherwise. Defaults to WHEN_IDLE.
      - `inlineData` GoogleCloudAiplatformV1Blob: A content blob. A Blob contains data of a specific media type. It is used to represent images, audio, and video.
        - `data` string, byte: Required. The raw bytes of the data.
        - `displayName` string: Optional. The display name of the blob. Used to provide a label or filename to distinguish blobs. This field is only returned in `PromptMessage` for prompt management. It is used in the Gemini calls only when server-side tools (`code_execution`, `google_search`, and `url_context`) are enabled.
        - `mimeType` string: Required. The IANA standard MIME type of the source data.
      - `mediaResolution` GoogleCloudAiplatformV1PartMediaResolution: per part media resolution. Media resolution for the input media.
        - `level` 'MEDIA_RESOLUTION_UNSPECIFIED' | 'MEDIA_RESOLUTION_LOW' | 'MEDIA_RESOLUTION_MEDIUM' | 'MEDIA_RESOLUTION_HIGH' | 'MEDIA_RESOLUTION_ULTRA_HIGH': The tokenization quality used for given media.
      - `speechMetadata` GoogleCloudAiplatformV1SpeechMetadata: Structured Metadata Sub-Message for Part
        - `speaker` string: Optional. Identifies which speaker is speaking this turn.
        - `style` string: Optional. Natural language description of the vocal style (e.g., "cheerful").
      - `text` string: Optional. The text content of the part. When sent from the VSCode Gemini Code Assist extension, references to @mentioned items will be converted to markdown boldface text. For example `@my-repo` will be converted to and sent as `**my-repo**` by the IDE agent.
      - `thought` boolean: Optional. Indicates whether the `part` represents the model's thought process or reasoning.
      - `thoughtSignature` string, byte: Optional. An opaque signature for the thought so it can be reused in subsequent requests.
      - `videoMetadata` GoogleCloudAiplatformV1VideoMetadata: Provides metadata for a video, including the start and end offsets for clipping and the frame rate.
        - `endOffset` string, google-duration: Optional. The end offset of the video.
        - `fps` number, double: Optional. The frame rate of the video sent to the model. If not specified, the default value is 1.0. The valid range is (0.0, 24.0].
        - `startOffset` string, google-duration: Optional. The start offset of the video.
    - `role` string: Optional. The producer of the content. Must be either 'user' or 'model'. If not set, the service will default to 'user'.
  - `toolConfig` GoogleCloudAiplatformV1ToolConfig: Tool config. This config is shared for all tools provided in the request.
    - `functionCallingConfig` GoogleCloudAiplatformV1FunctionCallingConfig: Function calling config.
      - `allowedFunctionNames` string[]: Optional. Function names to call. Only set when the Mode is ANY. Function names should match FunctionDeclaration.name. With mode set to ANY, model will predict a function call from the set of function names provided.
      - `mode` 'MODE_UNSPECIFIED' | 'AUTO' | 'ANY' | 'NONE' | 'VALIDATED': Optional. Function calling mode.
      - `streamFunctionCallArguments` boolean: Optional. When set to true, arguments of a single function call will be streamed out in multiple parts/contents/responses. Partial parameter results will be returned in the `FunctionCall.partial_args` field.
    - `retrievalConfig` GoogleCloudAiplatformV1RetrievalConfig: Retrieval config.
      - `languageCode` string: The language code of the user.
      - `latLng` GoogleTypeLatLng: An object that represents a latitude/longitude pair. This is expressed as a pair of doubles to represent degrees latitude and degrees longitude. Unless specified otherwise, this object must conform to the WGS84 standard. Values must be within normalized ranges.
        - `latitude` number, double: The latitude in degrees. It must be in the range [-90.0, +90.0].
        - `longitude` number, double: The longitude in degrees. It must be in the range [-180.0, +180.0].
  - `tools` GoogleCloudAiplatformV1Tool[]: Optional. Input only. Immutable. A list of `Tools` the model may use to generate the next response
    - `codeExecution` GoogleCloudAiplatformV1ToolCodeExecution: Tool that executes code generated by the model, and automatically returns the result to the model. See also ExecutableCode and CodeExecutionResult, which are input and output to this tool.
    - `computerUse` GoogleCloudAiplatformV1ToolComputerUse: A tool that enables the model to interact directly with a computer environment.
      - `disabledSafetyPolicies` string[]: Optional. A list of safety policies to disable for the computer use tool.
      - `enablePromptInjectionDetection` boolean: Optional. Whether to enable the prompt injection detection check on the computer use request.
      - `environment` 'ENVIRONMENT_UNSPECIFIED' | 'ENVIRONMENT_BROWSER' | 'ENVIRONMENT_MOBILE' | 'ENVIRONMENT_DESKTOP': Required. The target environment where the computer use tool operates.
      - `excludedPredefinedFunctions` string[]: Optional. A list of predefined functions to explicitly exclude from the model call. By default, [predefined functions](https://cloud.google.com/vertex-ai/generative-ai/docs/computer-use#supported-actions) are included. Excluding functions allows for a more restricted action space or custom definitions for predefined functions.
    - `enterpriseWebSearch` GoogleCloudAiplatformV1EnterpriseWebSearch: Tool to search public web data, powered by Vertex AI Search and Sec4 compliance.
      - `blockingConfidence` 'PHISH_BLOCK_THRESHOLD_UNSPECIFIED' | 'BLOCK_LOW_AND_ABOVE' | 'BLOCK_MEDIUM_AND_ABOVE' | 'BLOCK_HIGH_AND_ABOVE' | 'BLOCK_HIGHER_AND_ABOVE' | 'BLOCK_VERY_HIGH_AND_ABOVE' | 'BLOCK_ONLY_EXTREMELY_HIGH': Optional. Sites with confidence level chosen & above this value will be blocked from the search results.
      - `excludeDomains` string[]: Optional. List of domains to be excluded from the search results. The default limit is 2000 domains.
    - `exaAiSearch` GoogleCloudAiplatformV1ToolExaAiSearch: ExaAiSearch tool type. A tool that uses the Exa.ai search engine for grounding.
      - `apiKey` string: Required. The API key for ExaAiSearch.
      - `customConfigs` object: Optional. This field can be used to pass any parameter from the Exa.ai Search API.
    - `functionDeclarations` GoogleCloudAiplatformV1FunctionDeclaration[]: Optional. Function tool type. One or more function declarations to be passed to the model along with the current user query. Model may decide to call a subset of these functions by populating FunctionCall in the response. User should provide a FunctionResponse for each function call in the next turn. Based on the function responses, Model will generate the final response back to the user. Maximum 512 function declarations can be provided.
      - `behavior` 'UNSPECIFIED' | 'BLOCKING' | 'NON_BLOCKING': Optional. Specifies the function Behavior. If not specified, the system keeps the current function call behavior. This field is currently only supported by the BidiGenerateContent method.
      - `description` string: Optional. Description and purpose of the function. Model uses it to decide how and whether to call the function.
      - `name` string: Required. The name of the function to call. Must start with a letter or an underscore. Must be a-z, A-Z, 0-9, or contain underscores, dots, colons and dashes, with a maximum length of 128.
      - `parameters` GoogleCloudAiplatformV1Schema: Defines the schema of input and output data. This is a subset of the [OpenAPI 3.0 Schema Object](https://spec.openapis.org/oas/v3.0.3#schema-object).
        - `additionalProperties` unknown
        - `anyOf` GoogleCloudAiplatformV1Schema[]: Optional. The instance must be valid against any (one or more) of the subschemas listed in `any_of`.
        - `default` unknown
        - `defs` object: Optional. `defs` provides a map of schema definitions that can be reused by `ref` elsewhere in the schema. Only allowed at root level of the schema.
        - `description` string: Optional. Describes the data. The model uses this field to understand the purpose of the schema and how to use it. It is a best practice to provide a clear and descriptive explanation for the schema and its properties here, rather than in the prompt.
        - `enum` string[]: Optional. Possible values of the field. This field can be used to restrict a value to a fixed set of values. To mark a field as an enum, set `format` to `enum` and provide the list of possible values in `enum`. For example: 1. To define directions: `{type:STRING, format:enum, enum:["EAST", "NORTH", "SOUTH", "WEST"]}` 2. To define apartment numbers: `{type:INTEGER, format:enum, enum:["101", "201", "301"]}`
        - `example` unknown
        - `format` string: Optional. The format of the data. For `NUMBER` type, format can be `float` or `double`. For `INTEGER` type, format can be `int32` or `int64`. For `STRING` type, format can be `email`, `byte`, `date`, `date-time`, `password`, and other formats to further refine the data type.
        - `items` GoogleCloudAiplatformV1Schema (recursive)
        - `maxItems` string, int64: Optional. If type is `ARRAY`, `max_items` specifies the maximum number of items in an array.
        - `maxLength` string, int64: Optional. If type is `STRING`, `max_length` specifies the maximum length of the string.
        - `maxProperties` string, int64: Optional. If type is `OBJECT`, `max_properties` specifies the maximum number of properties that can be provided.
        - `maximum` number, double: Optional. If type is `INTEGER` or `NUMBER`, `maximum` specifies the maximum allowed value.
        - `minItems` string, int64: Optional. If type is `ARRAY`, `min_items` specifies the minimum number of items in an array.
        - `minLength` string, int64: Optional. If type is `STRING`, `min_length` specifies the minimum length of the string.
        - `minProperties` string, int64: Optional. If type is `OBJECT`, `min_properties` specifies the minimum number of properties that can be provided.
        - `minimum` number, double: Optional. If type is `INTEGER` or `NUMBER`, `minimum` specifies the minimum allowed value.
        - `nullable` boolean: Optional. Indicates if the value of this field can be null.
        - `pattern` string: Optional. If type is `STRING`, `pattern` specifies a regular expression that the string must match.
        - `properties` object: Optional. If type is `OBJECT`, `properties` is a map of property names to schema definitions for each property of the object.
        - `propertyOrdering` string[]: Optional. Order of properties displayed or used where order matters. This is not a standard field in OpenAPI specification, but can be used to control the order of properties.
        - `ref` string: Optional. Allows referencing another schema definition to use in place of this schema. The value must be a valid reference to a schema in `defs`. For example, the following schema defines a reference to a schema node named "Pet": type: object properties: pet: ref: #/defs/Pet defs: Pet: type: object properties: name: type: string The value of the "pet" property is a reference to the schema node named "Pet". See details in https://json-schema.org/understanding-json-schema/structuring
        - `required` string[]: Optional. If type is `OBJECT`, `required` lists the names of properties that must be present.
        - `title` string: Optional. Title for the schema.
        - `type` 'TYPE_UNSPECIFIED' | 'STRING' | 'NUMBER' | 'INTEGER' | 'BOOLEAN' | 'ARRAY' | 'OBJECT' | 'NULL': Optional. Data type of the schema field.
      - `parametersJsonSchema` unknown
      - `response` GoogleCloudAiplatformV1Schema: Defines the schema of input and output data. This is a subset of the [OpenAPI 3.0 Schema Object](https://spec.openapis.org/oas/v3.0.3#schema-object).
        - `additionalProperties` unknown
        - `anyOf` GoogleCloudAiplatformV1Schema[]: Optional. The instance must be valid against any (one or more) of the subschemas listed in `any_of`.
        - `default` unknown
        - `defs` object: Optional. `defs` provides a map of schema definitions that can be reused by `ref` elsewhere in the schema. Only allowed at root level of the schema.
        - `description` string: Optional. Describes the data. The model uses this field to understand the purpose of the schema and how to use it. It is a best practice to provide a clear and descriptive explanation for the schema and its properties here, rather than in the prompt.
        - `enum` string[]: Optional. Possible values of the field. This field can be used to restrict a value to a fixed set of values. To mark a field as an enum, set `format` to `enum` and provide the list of possible values in `enum`. For example: 1. To define directions: `{type:STRING, format:enum, enum:["EAST", "NORTH", "SOUTH", "WEST"]}` 2. To define apartment numbers: `{type:INTEGER, format:enum, enum:["101", "201", "301"]}`
        - `example` unknown
        - `format` string: Optional. The format of the data. For `NUMBER` type, format can be `float` or `double`. For `INTEGER` type, format can be `int32` or `int64`. For `STRING` type, format can be `email`, `byte`, `date`, `date-time`, `password`, and other formats to further refine the data type.
        - `items` GoogleCloudAiplatformV1Schema (recursive)
        - `maxItems` string, int64: Optional. If type is `ARRAY`, `max_items` specifies the maximum number of items in an array.
        - `maxLength` string, int64: Optional. If type is `STRING`, `max_length` specifies the maximum length of the string.
        - `maxProperties` string, int64: Optional. If type is `OBJECT`, `max_properties` specifies the maximum number of properties that can be provided.
        - `maximum` number, double: Optional. If type is `INTEGER` or `NUMBER`, `maximum` specifies the maximum allowed value.
        - `minItems` string, int64: Optional. If type is `ARRAY`, `min_items` specifies the minimum number of items in an array.
        - `minLength` string, int64: Optional. If type is `STRING`, `min_length` specifies the minimum length of the string.
        - `minProperties` string, int64: Optional. If type is `OBJECT`, `min_properties` specifies the minimum number of properties that can be provided.
        - `minimum` number, double: Optional. If type is `INTEGER` or `NUMBER`, `minimum` specifies the minimum allowed value.
        - `nullable` boolean: Optional. Indicates if the value of this field can be null.
        - `pattern` string: Optional. If type is `STRING`, `pattern` specifies a regular expression that the string must match.
        - `properties` object: Optional. If type is `OBJECT`, `properties` is a map of property names to schema definitions for each property of the object.
        - `propertyOrdering` string[]: Optional. Order of properties displayed or used where order matters. This is not a standard field in OpenAPI specification, but can be used to control the order of properties.
        - `ref` string: Optional. Allows referencing another schema definition to use in place of this schema. The value must be a valid reference to a schema in `defs`. For example, the following schema defines a reference to a schema node named "Pet": type: object properties: pet: ref: #/defs/Pet defs: Pet: type: object properties: name: type: string The value of the "pet" property is a reference to the schema node named "Pet". See details in https://json-schema.org/understanding-json-schema/structuring
        - `required` string[]: Optional. If type is `OBJECT`, `required` lists the names of properties that must be present.
        - `title` string: Optional. Title for the schema.
        - `type` 'TYPE_UNSPECIFIED' | 'STRING' | 'NUMBER' | 'INTEGER' | 'BOOLEAN' | 'ARRAY' | 'OBJECT' | 'NULL': Optional. Data type of the schema field.
      - `responseJsonSchema` unknown
    - `googleMaps` GoogleCloudAiplatformV1GoogleMaps: Tool to retrieve public maps data for grounding, powered by Google.
      - `enableWidget` boolean: Optional. Deprecated: The Google Maps contextual widget behavior in Grounding with Google Maps is being deprecated; this field is planned for removal and no longer has any effect once removed. If true, include the widget context token in the response.
      - `groundingTypes` GoogleCloudAiplatformV1GoogleMapsGroundingTypes: Defines the types of Google Maps grounding that can be enabled and their configurations.
        - `places` GoogleCloudAiplatformV1GoogleMapsPlaces: Grounding with Google Maps Places data (e.g. QueryPlaces). This is the default Google Maps grounding type when no other type is specified.
        - `routing` GoogleCloudAiplatformV1GoogleMapsRouting: Grounding with Google Maps Routing APIs (ComputeRoutes and SearchAlongRoute).
    - `googleSearch` GoogleCloudAiplatformV1ToolGoogleSearch: GoogleSearch tool type. Tool to support Google Search in Model. Powered by Google.
      - `blockingConfidence` 'PHISH_BLOCK_THRESHOLD_UNSPECIFIED' | 'BLOCK_LOW_AND_ABOVE' | 'BLOCK_MEDIUM_AND_ABOVE' | 'BLOCK_HIGH_AND_ABOVE' | 'BLOCK_HIGHER_AND_ABOVE' | 'BLOCK_VERY_HIGH_AND_ABOVE' | 'BLOCK_ONLY_EXTREMELY_HIGH': Optional. Sites with confidence level chosen & above this value will be blocked from the search results.
      - `excludeDomains` string[]: Optional. List of domains to be excluded from the search results. The default limit is 2000 domains. Example: ["amazon.com", "facebook.com"].
      - `searchTypes` GoogleCloudAiplatformV1ToolGoogleSearchSearchTypes: Different types of search that can be enabled on the GoogleSearch tool.
        - `imageSearch` GoogleCloudAiplatformV1ToolGoogleSearchImageSearch: Image search for grounding and related configurations.
        - `webSearch` GoogleCloudAiplatformV1ToolGoogleSearchWebSearch: Standard web search for grounding and related configurations. Only text results are returned.
    - `googleSearchRetrieval` GoogleCloudAiplatformV1GoogleSearchRetrieval: Tool to retrieve public web data for grounding, powered by Google.
      - `dynamicRetrievalConfig` GoogleCloudAiplatformV1DynamicRetrievalConfig: Describes the options to customize dynamic retrieval.
        - `dynamicThreshold` number, float: Optional. The threshold to be used in dynamic retrieval. If not set, a system default value is used.
        - `mode` 'MODE_UNSPECIFIED' | 'MODE_DYNAMIC': The mode of the predictor to be used in dynamic retrieval.
    - `parallelAiSearch` GoogleCloudAiplatformV1ToolParallelAiSearch: ParallelAiSearch tool type. A tool that uses the Parallel.ai search engine for grounding.
      - `apiKey` string: Optional. The API key for ParallelAiSearch. If an API key is not provided, the system will attempt to verify access by checking for an active Parallel.ai subscription through the Google Cloud Marketplace. See https://docs.parallel.ai/search/search-quickstart for more details.
      - `customConfigs` object: Optional. Custom configs for ParallelAiSearch. This field can be used to pass any parameter from the Parallel.ai Search API. See the Parallel.ai documentation for the full list of available parameters and their usage: https://docs.parallel.ai/api-reference/search-beta/search Currently only `source_policy`, `excerpts`, `max_results`, `mode`, `fetch_policy` can be set via this field. For example: { "source_policy": { "include_domains": ["google.com", "wikipedia.org"], "exclude_domains": ["example.com"] }, "fetch_policy": { "max_age_seconds": 3600 } }
      - `enableDataRetention` boolean: Optional. Deprecated: Use `enable_zero_data_retention` instead. Instructs Vertex Grounding to use Parallel's Zero Data Retention Marketplace product. If this value is "false" or omitted, the Parallel Web Search for Grounding standard subscription will be used. If this value is "true", the Parallel Web Search for Grounding - ZDR subscription will be used.
      - `enableZeroDataRetention` boolean: Optional. Instructs Vertex Grounding to use Parallel's Zero Data Retention Marketplace product. If this value is "false" or omitted, the Parallel Web Search for Grounding standard subscription will be used. If this value is "true", the Parallel Web Search for Grounding - ZDR subscription will be used.
    - `retrieval` GoogleCloudAiplatformV1Retrieval: Defines a retrieval tool that model can call to access external knowledge.
      - `disableAttribution` boolean: Optional. Deprecated. This option is no longer supported.
      - `externalApi` GoogleCloudAiplatformV1ExternalApi: Retrieve from data source powered by external API for grounding. The external API is not owned by Google, but need to follow the pre-defined API spec.
        - `apiAuth` GoogleCloudAiplatformV1ApiAuth: The generic reusable api auth config. Deprecated. Please use AuthConfig (google/cloud/aiplatform/master/auth.proto) instead.
          - `apiKeyConfig` GoogleCloudAiplatformV1ApiAuthApiKeyConfig: The API secret.
            - `apiKeySecretVersion` string: Required. The SecretManager secret version resource name storing API key. e.g. projects/{project}/secrets/{secret}/versions/{version}
            - `apiKeyString` string: The API key string. Either this or `api_key_secret_version` must be set.
        - `apiSpec` 'API_SPEC_UNSPECIFIED' | 'SIMPLE_SEARCH' | 'ELASTIC_SEARCH': The API spec that the external API implements.
        - `authConfig` GoogleCloudAiplatformV1AuthConfig: Auth configuration to run the extension.
          - `apiKeyConfig` GoogleCloudAiplatformV1AuthConfigApiKeyConfig: Config for authentication with API key.
            - `apiKeySecret` string: Optional. The name of the SecretManager secret version resource storing the API key. Format: `projects/{project}/secrets/{secrete}/versions/{version}` - If both `api_key_secret` and `api_key_string` are specified, this field takes precedence over `api_key_string`. - If specified, the `secretmanager.versions.access` permission should be granted to Vertex AI Extension Service Agent (https://cloud.google.com/vertex-ai/docs/general/access-control#service-agents) on the specified resource.
            - `apiKeyString` string: Optional. The API key to be used in the request directly.
            - `httpElementLocation` 'HTTP_IN_UNSPECIFIED' | 'HTTP_IN_QUERY' | 'HTTP_IN_HEADER' | 'HTTP_IN_PATH' | 'HTTP_IN_BODY' | 'HTTP_IN_COOKIE': Optional. The location of the API key.
            - `name` string: Optional. The parameter name of the API key. E.g. If the API request is "https://example.com/act?api_key=", "api_key" would be the parameter name.
          - `authType` 'AUTH_TYPE_UNSPECIFIED' | 'NO_AUTH' | 'API_KEY_AUTH' | 'HTTP_BASIC_AUTH' | 'GOOGLE_SERVICE_ACCOUNT_AUTH' | 'OAUTH' | 'OIDC_AUTH': Type of auth scheme.
          - `googleServiceAccountConfig` GoogleCloudAiplatformV1AuthConfigGoogleServiceAccountConfig: Config for Google Service Account Authentication.
            - `serviceAccount` string: Optional. The service account that the extension execution service runs as. - If the service account is specified, the `iam.serviceAccounts.getAccessToken` permission should be granted to Vertex AI Extension Service Agent (https://cloud.google.com/vertex-ai/docs/general/access-control#service-agents) on the specified service account. - If not specified, the Vertex AI Extension Service Agent will be used to execute the Extension.
          - `httpBasicAuthConfig` GoogleCloudAiplatformV1AuthConfigHttpBasicAuthConfig: Config for HTTP Basic Authentication.
            - `credentialSecret` string: Required. The name of the SecretManager secret version resource storing the base64 encoded credentials. Format: `projects/{project}/secrets/{secrete}/versions/{version}` - If specified, the `secretmanager.versions.access` permission should be granted to Vertex AI Extension Service Agent (https://cloud.google.com/vertex-ai/docs/general/access-control#service-agents) on the specified resource.
          - `oauthConfig` GoogleCloudAiplatformV1AuthConfigOauthConfig: Config for user oauth.
            - `accessToken` string: Access token for extension endpoint. Only used to propagate token from [[ExecuteExtensionRequest.runtime_auth_config]] at request time.
            - `serviceAccount` string: The service account used to generate access tokens for executing the Extension. - If the service account is specified, the `iam.serviceAccounts.getAccessToken` permission should be granted to Vertex AI Extension Service Agent (https://cloud.google.com/vertex-ai/docs/general/access-control#service-agents) on the provided service account.
          - `oidcConfig` GoogleCloudAiplatformV1AuthConfigOidcConfig: Config for user OIDC auth.
            - `idToken` string: OpenID Connect formatted ID token for extension endpoint. Only used to propagate token from [[ExecuteExtensionRequest.runtime_auth_config]] at request time.
            - `serviceAccount` string: The service account used to generate an OpenID Connect (OIDC)-compatible JWT token signed by the Google OIDC Provider (accounts.google.com) for extension endpoint (https://cloud.google.com/iam/docs/create-short-lived-credentials-direct#sa-credentials-oidc). - The audience for the token will be set to the URL in the server url defined in the OpenApi spec. - If the service account is provided, the service account should grant `iam.serviceAccounts.getOpenIdToken` permission to Vertex AI Extension Service Agent (https://cloud.google.com/vertex-ai/docs/general/access-control#service-agents).
        - `elasticSearchParams` GoogleCloudAiplatformV1ExternalApiElasticSearchParams: The search parameters to use for the ELASTIC_SEARCH spec.
          - `index` string: The ElasticSearch index to use.
          - `numHits` integer: Optional. Number of hits (chunks) to request. When specified, it is passed to Elasticsearch as the `num_hits` param.
          - `searchTemplate` string: The ElasticSearch search template to use.
        - `endpoint` string: The endpoint of the external API. The system will call the API at this endpoint to retrieve the data for grounding. Example: https://acme.com:443/search
        - `simpleSearchParams` GoogleCloudAiplatformV1ExternalApiSimpleSearchParams: The search parameters to use for SIMPLE_SEARCH spec.
      - `vertexAiSearch` GoogleCloudAiplatformV1VertexAISearch: Retrieve from Vertex AI Search datastore or engine for grounding. datastore and engine are mutually exclusive. See https://cloud.google.com/products/agent-builder
        - `dataStoreSpecs` GoogleCloudAiplatformV1VertexAISearchDataStoreSpec[]: Specifications that define the specific DataStores to be searched, along with configurations for those data stores. This is only considered for Engines with multiple data stores. It should only be set if engine is used.
          - `dataStore` string: Full resource name of DataStore, such as Format: `projects/{project}/locations/{location}/collections/{collection}/dataStores/{dataStore}`
          - `filter` string: Optional. Filter specification to filter documents in the data store specified by data_store field. For more information on filtering, see [Filtering](https://cloud.google.com/generative-ai-app-builder/docs/filter-search-metadata)
        - `datastore` string: Optional. Fully-qualified Vertex AI Search data store resource ID. Format: `projects/{project}/locations/{location}/collections/{collection}/dataStores/{dataStore}`
        - `engine` string: Optional. Fully-qualified Vertex AI Search engine resource ID. Format: `projects/{project}/locations/{location}/collections/{collection}/engines/{engine}`
        - `filter` string: Optional. Filter strings to be passed to the search API.
        - `maxResults` integer: Optional. Number of search results to return per query. The default value is 10. The maximumm allowed value is 10.
      - `vertexRagStore` GoogleCloudAiplatformV1VertexRagStore: Retrieve from Vertex RAG Store for grounding.
        - `ragResources` GoogleCloudAiplatformV1VertexRagStoreRagResource[]: Optional. The representation of the rag source. It can be used to specify corpus only or ragfiles. Currently only support one corpus or multiple files from one corpus. In the future we may open up multiple corpora support.
          - `ragCorpus` string: Optional. RagCorpora resource name. Format: `projects/{project}/locations/{location}/ragCorpora/{rag_corpus}`
          - `ragFileIds` string[]: Optional. rag_file_id. The files should be in the same rag_corpus set in rag_corpus field.
        - `ragRetrievalConfig` GoogleCloudAiplatformV1RagRetrievalConfig: Specifies the context retrieval config.
          - `filter` GoogleCloudAiplatformV1RagRetrievalConfigFilter: Config for filters.
            - `metadataFilter` string: Optional. String for metadata filtering.
            - `vectorDistanceThreshold` number, double: Optional. Only returns contexts with vector distance smaller than the threshold.
            - `vectorSimilarityThreshold` number, double: Optional. Only returns contexts with vector similarity larger than the threshold.
          - `ranking` GoogleCloudAiplatformV1RagRetrievalConfigRanking: Config for ranking and reranking.
            - `llmRanker` GoogleCloudAiplatformV1RagRetrievalConfigRankingLlmRanker: Config for LlmRanker.
              - …
            - `rankService` GoogleCloudAiplatformV1RagRetrievalConfigRankingRankService: Config for Rank Service.
              - …
          - `topK` integer: Optional. The number of contexts to retrieve.
        - `similarityTopK` integer: Optional. Number of top k results to return from the selected corpora.
        - `vectorDistanceThreshold` number, double: Optional. Only return results with vector distance smaller than the threshold.
    - `urlContext` GoogleCloudAiplatformV1UrlContext: Tool to support URL context.
  - `ttl` string, google-duration: Input only. The TTL for this resource. The expiration time is computed: now + TTL.
  - `updateTime` string, google-datetime: Output only. When the cache entry was last updated in UTC time.
  - `usageMetadata` GoogleCloudAiplatformV1CachedContentUsageMetadata: Metadata on the usage of the cached content.
    - `audioDurationSeconds` integer: Duration of audio in seconds.
    - `imageCount` integer: Number of images.
    - `textCount` integer: Number of text characters.
    - `totalTokenCount` integer: Total number of tokens that the cached content consumes.
    - `videoDurationSeconds` integer: Duration of video in seconds.

## Response `200`

Successful response

- GoogleCloudAiplatformV1CachedContent: A resource used in LLM queries for users to explicitly specify what to cache and how to cache.
  - `contents` GoogleCloudAiplatformV1Content[]: Optional. Input only. Immutable. The content to cache
    - `parts` GoogleCloudAiplatformV1Part[]: Required. A list of Part objects that make up a single message. Parts of a message can have different MIME types. A Content message must have at least one Part.
      - `audioTranscription` GoogleCloudAiplatformV1AudioTranscription: The transcription of an audio part. For multi-speaker audio, each speaker segment is a separate `Part` with its own `AudioTranscription` carrying the `speaker_label`.
        - `speakerLabel` string: Optional. A label identifying the speaker of this audio segment (e.g. `spk_1`, `spk_2`). Present when `diarization` is set.
        - `text` string: Required. The transcription text of this audio segment.
        - `words` GoogleCloudAiplatformV1AudioTranscriptionWordInfo[]: Optional. Detailed word-level transcriptions and timing details. Present when `word_timestamp` is set.
          - `endOffset` string, google-duration: Optional. End offset in time of the word relative to the start of the audio.
          - `startOffset` string, google-duration: Optional. Start offset in time of the word relative to the start of the audio.
          - `word` string: Required. Transcript of the word.
      - `codeExecutionResult` GoogleCloudAiplatformV1CodeExecutionResult: Result of executing the ExecutableCode. Generated only when the `CodeExecution` tool is used.
        - `id` string: Optional. The identifier of the `ExecutableCode` part this result is for. Only populated if the corresponding `ExecutableCode` has an id.
        - `outcome` 'OUTCOME_UNSPECIFIED' | 'OUTCOME_OK' | 'OUTCOME_FAILED' | 'OUTCOME_DEADLINE_EXCEEDED': Required. Outcome of the code execution.
        - `output` string: Optional. Contains stdout when code execution is successful, stderr or other description otherwise.
      - `executableCode` GoogleCloudAiplatformV1ExecutableCode: Code generated by the model that is meant to be executed, and the result returned to the model. Generated when using the `CodeExecution` tool, in which the code will be automatically executed, and a corresponding CodeExecutionResult will also be generated.
        - `code` string: Required. The code to be executed.
        - `id` string: Optional. Unique identifier of the `ExecutableCode` part. The server returns the `CodeExecutionResult` with the matching `id`.
        - `language` 'LANGUAGE_UNSPECIFIED' | 'PYTHON': Required. Programming language of the `code`.
      - `fileData` GoogleCloudAiplatformV1FileData: URI-based data. A FileData message contains a URI pointing to data of a specific media type. It is used to represent images, audio, and video stored in Google Cloud Storage.
        - `displayName` string: Optional. The display name of the file. Used to provide a label or filename to distinguish files. This field is only returned in `PromptMessage` for prompt management. It is used in the Gemini calls only when server side tools (`code_execution`, `google_search`, and `url_context`) are enabled.
        - `fileUri` string: Required. The URI of the file in Google Cloud Storage.
        - `mimeType` string: Required. The IANA standard MIME type of the source data.
      - `functionCall` GoogleCloudAiplatformV1FunctionCall: A predicted FunctionCall returned from the model that contains a string representing the FunctionDeclaration.name and a structured JSON object containing the parameters and their values.
        - `args` object: Optional. The function parameters and values in JSON object format. See FunctionDeclaration.parameters for parameter details.
        - `id` string: Optional. The unique id of the function call. If populated, the client to execute the `function_call` and return the response with the matching `id`.
        - `name` string: Optional. The name of the function to call. Matches FunctionDeclaration.name.
        - `partialArgs` GoogleCloudAiplatformV1PartialArg[]: Optional. The partial argument value of the function call. If provided, represents the arguments/fields that are streamed incrementally.
          - `boolValue` boolean: Optional. Represents a boolean value.
          - `jsonPath` string: Required. A JSON Path (RFC 9535) to the argument being streamed. https://datatracker.ietf.org/doc/html/rfc9535. e.g. "$.foo.bar[0].data".
          - `nullValue` 'NULL_VALUE': Optional. Represents a null value.
          - `numberValue` number, double: Optional. Represents a double value.
          - `stringValue` string: Optional. Represents a string value.
          - `willContinue` boolean: Optional. Whether this is not the last part of the same json_path. If true, another PartialArg message for the current json_path is expected to follow.
        - `willContinue` boolean: Optional. Whether this is the last part of the FunctionCall. If true, another partial message for the current FunctionCall is expected to follow.
      - `functionResponse` GoogleCloudAiplatformV1FunctionResponse: The result output from a FunctionCall that contains a string representing the FunctionDeclaration.name and a structured JSON object containing any output from the function is used as context to the model. This should contain the result of a `FunctionCall` made based on model prediction.
        - `id` string: Optional. The id of the function call this response is for. Populated by the client to match the corresponding function call `id`.
        - `name` string: Required. The name of the function to call. Matches FunctionDeclaration.name and FunctionCall.name.
        - `parts` GoogleCloudAiplatformV1FunctionResponsePart[]: Optional. Ordered `Parts` that constitute a function response. Parts may have different IANA MIME types.
          - `fileData` GoogleCloudAiplatformV1FunctionResponseFileData: URI based data for function response.
            - `displayName` string: Optional. Display name of the file data. Used to provide a label or filename to distinguish file datas. This field is only returned in PromptMessage for prompt management. It is currently used in the Gemini GenerateContent calls only when server side tools (code_execution, google_search, and url_context) are enabled.
            - `fileUri` string: Required. URI.
            - `mimeType` string: Required. The IANA standard MIME type of the source data.
          - `inlineData` GoogleCloudAiplatformV1FunctionResponseBlob: Raw media bytes for function response. Text should not be sent as raw bytes, use the 'text' field.
            - `data` string, byte: Required. Raw bytes.
            - `displayName` string: Optional. Display name of the blob. Used to provide a label or filename to distinguish blobs. This field is only returned in PromptMessage for prompt management. It is currently used in the Gemini GenerateContent calls only when server side tools (code_execution, google_search, and url_context) are enabled.
            - `mimeType` string: Required. The IANA standard MIME type of the source data.
        - `response` object: Required. The function response in JSON object format. Use "output" key to specify function output and "error" key to specify error details (if any). If "output" and "error" keys are not specified, then whole "response" is treated as function output.
        - `scheduling` 'SCHEDULING_UNSPECIFIED' | 'SILENT' | 'WHEN_IDLE' | 'INTERRUPT': Optional. Specifies how the response should be scheduled in the conversation. Only applicable to NON_BLOCKING function calls, is ignored otherwise. Defaults to WHEN_IDLE.
      - `inlineData` GoogleCloudAiplatformV1Blob: A content blob. A Blob contains data of a specific media type. It is used to represent images, audio, and video.
        - `data` string, byte: Required. The raw bytes of the data.
        - `displayName` string: Optional. The display name of the blob. Used to provide a label or filename to distinguish blobs. This field is only returned in `PromptMessage` for prompt management. It is used in the Gemini calls only when server-side tools (`code_execution`, `google_search`, and `url_context`) are enabled.
        - `mimeType` string: Required. The IANA standard MIME type of the source data.
      - `mediaResolution` GoogleCloudAiplatformV1PartMediaResolution: per part media resolution. Media resolution for the input media.
        - `level` 'MEDIA_RESOLUTION_UNSPECIFIED' | 'MEDIA_RESOLUTION_LOW' | 'MEDIA_RESOLUTION_MEDIUM' | 'MEDIA_RESOLUTION_HIGH' | 'MEDIA_RESOLUTION_ULTRA_HIGH': The tokenization quality used for given media.
      - `speechMetadata` GoogleCloudAiplatformV1SpeechMetadata: Structured Metadata Sub-Message for Part
        - `speaker` string: Optional. Identifies which speaker is speaking this turn.
        - `style` string: Optional. Natural language description of the vocal style (e.g., "cheerful").
      - `text` string: Optional. The text content of the part. When sent from the VSCode Gemini Code Assist extension, references to @mentioned items will be converted to markdown boldface text. For example `@my-repo` will be converted to and sent as `**my-repo**` by the IDE agent.
      - `thought` boolean: Optional. Indicates whether the `part` represents the model's thought process or reasoning.
      - `thoughtSignature` string, byte: Optional. An opaque signature for the thought so it can be reused in subsequent requests.
      - `videoMetadata` GoogleCloudAiplatformV1VideoMetadata: Provides metadata for a video, including the start and end offsets for clipping and the frame rate.
        - `endOffset` string, google-duration: Optional. The end offset of the video.
        - `fps` number, double: Optional. The frame rate of the video sent to the model. If not specified, the default value is 1.0. The valid range is (0.0, 24.0].
        - `startOffset` string, google-duration: Optional. The start offset of the video.
    - `role` string: Optional. The producer of the content. Must be either 'user' or 'model'. If not set, the service will default to 'user'.
  - `createTime` string, google-datetime: Output only. Creation time of the cache entry.
  - `displayName` string: Optional. Immutable. The user-generated meaningful display name of the cached content.
  - `encryptionSpec` GoogleCloudAiplatformV1EncryptionSpec: Represents a customer-managed encryption key specification that can be applied to a Vertex AI resource.
    - `kmsKeyName` string: Required. Resource name of the Cloud KMS key used to protect the resource. The Cloud KMS key must be in the same region as the resource. It must have the format `projects/{project}/locations/{location}/keyRings/{key_ring}/cryptoKeys/{crypto_key}`.
  - `expireTime` string, google-datetime: Timestamp of when this resource is considered expired. This is *always* provided on output, regardless of what was sent on input.
  - `model` string: Immutable. The name of the `Model` to use for cached content. Currently, only the published Gemini base models are supported, in form of projects/{PROJECT}/locations/{LOCATION}/publishers/google/models/{MODEL}
  - `name` string: Immutable. Identifier. The server-generated resource name of the cached content Format: projects/{project}/locations/{location}/cachedContents/{cached_content}
  - `systemInstruction` GoogleCloudAiplatformV1Content: The structured data content of a message. A Content message contains a `role` field, which indicates the producer of the content, and a `parts` field, which contains the multi-part data of the message.
    - `parts` GoogleCloudAiplatformV1Part[]: Required. A list of Part objects that make up a single message. Parts of a message can have different MIME types. A Content message must have at least one Part.
      - `audioTranscription` GoogleCloudAiplatformV1AudioTranscription: The transcription of an audio part. For multi-speaker audio, each speaker segment is a separate `Part` with its own `AudioTranscription` carrying the `speaker_label`.
        - `speakerLabel` string: Optional. A label identifying the speaker of this audio segment (e.g. `spk_1`, `spk_2`). Present when `diarization` is set.
        - `text` string: Required. The transcription text of this audio segment.
        - `words` GoogleCloudAiplatformV1AudioTranscriptionWordInfo[]: Optional. Detailed word-level transcriptions and timing details. Present when `word_timestamp` is set.
          - `endOffset` string, google-duration: Optional. End offset in time of the word relative to the start of the audio.
          - `startOffset` string, google-duration: Optional. Start offset in time of the word relative to the start of the audio.
          - `word` string: Required. Transcript of the word.
      - `codeExecutionResult` GoogleCloudAiplatformV1CodeExecutionResult: Result of executing the ExecutableCode. Generated only when the `CodeExecution` tool is used.
        - `id` string: Optional. The identifier of the `ExecutableCode` part this result is for. Only populated if the corresponding `ExecutableCode` has an id.
        - `outcome` 'OUTCOME_UNSPECIFIED' | 'OUTCOME_OK' | 'OUTCOME_FAILED' | 'OUTCOME_DEADLINE_EXCEEDED': Required. Outcome of the code execution.
        - `output` string: Optional. Contains stdout when code execution is successful, stderr or other description otherwise.
      - `executableCode` GoogleCloudAiplatformV1ExecutableCode: Code generated by the model that is meant to be executed, and the result returned to the model. Generated when using the `CodeExecution` tool, in which the code will be automatically executed, and a corresponding CodeExecutionResult will also be generated.
        - `code` string: Required. The code to be executed.
        - `id` string: Optional. Unique identifier of the `ExecutableCode` part. The server returns the `CodeExecutionResult` with the matching `id`.
        - `language` 'LANGUAGE_UNSPECIFIED' | 'PYTHON': Required. Programming language of the `code`.
      - `fileData` GoogleCloudAiplatformV1FileData: URI-based data. A FileData message contains a URI pointing to data of a specific media type. It is used to represent images, audio, and video stored in Google Cloud Storage.
        - `displayName` string: Optional. The display name of the file. Used to provide a label or filename to distinguish files. This field is only returned in `PromptMessage` for prompt management. It is used in the Gemini calls only when server side tools (`code_execution`, `google_search`, and `url_context`) are enabled.
        - `fileUri` string: Required. The URI of the file in Google Cloud Storage.
        - `mimeType` string: Required. The IANA standard MIME type of the source data.
      - `functionCall` GoogleCloudAiplatformV1FunctionCall: A predicted FunctionCall returned from the model that contains a string representing the FunctionDeclaration.name and a structured JSON object containing the parameters and their values.
        - `args` object: Optional. The function parameters and values in JSON object format. See FunctionDeclaration.parameters for parameter details.
        - `id` string: Optional. The unique id of the function call. If populated, the client to execute the `function_call` and return the response with the matching `id`.
        - `name` string: Optional. The name of the function to call. Matches FunctionDeclaration.name.
        - `partialArgs` GoogleCloudAiplatformV1PartialArg[]: Optional. The partial argument value of the function call. If provided, represents the arguments/fields that are streamed incrementally.
          - `boolValue` boolean: Optional. Represents a boolean value.
          - `jsonPath` string: Required. A JSON Path (RFC 9535) to the argument being streamed. https://datatracker.ietf.org/doc/html/rfc9535. e.g. "$.foo.bar[0].data".
          - `nullValue` 'NULL_VALUE': Optional. Represents a null value.
          - `numberValue` number, double: Optional. Represents a double value.
          - `stringValue` string: Optional. Represents a string value.
          - `willContinue` boolean: Optional. Whether this is not the last part of the same json_path. If true, another PartialArg message for the current json_path is expected to follow.
        - `willContinue` boolean: Optional. Whether this is the last part of the FunctionCall. If true, another partial message for the current FunctionCall is expected to follow.
      - `functionResponse` GoogleCloudAiplatformV1FunctionResponse: The result output from a FunctionCall that contains a string representing the FunctionDeclaration.name and a structured JSON object containing any output from the function is used as context to the model. This should contain the result of a `FunctionCall` made based on model prediction.
        - `id` string: Optional. The id of the function call this response is for. Populated by the client to match the corresponding function call `id`.
        - `name` string: Required. The name of the function to call. Matches FunctionDeclaration.name and FunctionCall.name.
        - `parts` GoogleCloudAiplatformV1FunctionResponsePart[]: Optional. Ordered `Parts` that constitute a function response. Parts may have different IANA MIME types.
          - `fileData` GoogleCloudAiplatformV1FunctionResponseFileData: URI based data for function response.
            - `displayName` string: Optional. Display name of the file data. Used to provide a label or filename to distinguish file datas. This field is only returned in PromptMessage for prompt management. It is currently used in the Gemini GenerateContent calls only when server side tools (code_execution, google_search, and url_context) are enabled.
            - `fileUri` string: Required. URI.
            - `mimeType` string: Required. The IANA standard MIME type of the source data.
          - `inlineData` GoogleCloudAiplatformV1FunctionResponseBlob: Raw media bytes for function response. Text should not be sent as raw bytes, use the 'text' field.
            - `data` string, byte: Required. Raw bytes.
            - `displayName` string: Optional. Display name of the blob. Used to provide a label or filename to distinguish blobs. This field is only returned in PromptMessage for prompt management. It is currently used in the Gemini GenerateContent calls only when server side tools (code_execution, google_search, and url_context) are enabled.
            - `mimeType` string: Required. The IANA standard MIME type of the source data.
        - `response` object: Required. The function response in JSON object format. Use "output" key to specify function output and "error" key to specify error details (if any). If "output" and "error" keys are not specified, then whole "response" is treated as function output.
        - `scheduling` 'SCHEDULING_UNSPECIFIED' | 'SILENT' | 'WHEN_IDLE' | 'INTERRUPT': Optional. Specifies how the response should be scheduled in the conversation. Only applicable to NON_BLOCKING function calls, is ignored otherwise. Defaults to WHEN_IDLE.
      - `inlineData` GoogleCloudAiplatformV1Blob: A content blob. A Blob contains data of a specific media type. It is used to represent images, audio, and video.
        - `data` string, byte: Required. The raw bytes of the data.
        - `displayName` string: Optional. The display name of the blob. Used to provide a label or filename to distinguish blobs. This field is only returned in `PromptMessage` for prompt management. It is used in the Gemini calls only when server-side tools (`code_execution`, `google_search`, and `url_context`) are enabled.
        - `mimeType` string: Required. The IANA standard MIME type of the source data.
      - `mediaResolution` GoogleCloudAiplatformV1PartMediaResolution: per part media resolution. Media resolution for the input media.
        - `level` 'MEDIA_RESOLUTION_UNSPECIFIED' | 'MEDIA_RESOLUTION_LOW' | 'MEDIA_RESOLUTION_MEDIUM' | 'MEDIA_RESOLUTION_HIGH' | 'MEDIA_RESOLUTION_ULTRA_HIGH': The tokenization quality used for given media.
      - `speechMetadata` GoogleCloudAiplatformV1SpeechMetadata: Structured Metadata Sub-Message for Part
        - `speaker` string: Optional. Identifies which speaker is speaking this turn.
        - `style` string: Optional. Natural language description of the vocal style (e.g., "cheerful").
      - `text` string: Optional. The text content of the part. When sent from the VSCode Gemini Code Assist extension, references to @mentioned items will be converted to markdown boldface text. For example `@my-repo` will be converted to and sent as `**my-repo**` by the IDE agent.
      - `thought` boolean: Optional. Indicates whether the `part` represents the model's thought process or reasoning.
      - `thoughtSignature` string, byte: Optional. An opaque signature for the thought so it can be reused in subsequent requests.
      - `videoMetadata` GoogleCloudAiplatformV1VideoMetadata: Provides metadata for a video, including the start and end offsets for clipping and the frame rate.
        - `endOffset` string, google-duration: Optional. The end offset of the video.
        - `fps` number, double: Optional. The frame rate of the video sent to the model. If not specified, the default value is 1.0. The valid range is (0.0, 24.0].
        - `startOffset` string, google-duration: Optional. The start offset of the video.
    - `role` string: Optional. The producer of the content. Must be either 'user' or 'model'. If not set, the service will default to 'user'.
  - `toolConfig` GoogleCloudAiplatformV1ToolConfig: Tool config. This config is shared for all tools provided in the request.
    - `functionCallingConfig` GoogleCloudAiplatformV1FunctionCallingConfig: Function calling config.
      - `allowedFunctionNames` string[]: Optional. Function names to call. Only set when the Mode is ANY. Function names should match FunctionDeclaration.name. With mode set to ANY, model will predict a function call from the set of function names provided.
      - `mode` 'MODE_UNSPECIFIED' | 'AUTO' | 'ANY' | 'NONE' | 'VALIDATED': Optional. Function calling mode.
      - `streamFunctionCallArguments` boolean: Optional. When set to true, arguments of a single function call will be streamed out in multiple parts/contents/responses. Partial parameter results will be returned in the `FunctionCall.partial_args` field.
    - `retrievalConfig` GoogleCloudAiplatformV1RetrievalConfig: Retrieval config.
      - `languageCode` string: The language code of the user.
      - `latLng` GoogleTypeLatLng: An object that represents a latitude/longitude pair. This is expressed as a pair of doubles to represent degrees latitude and degrees longitude. Unless specified otherwise, this object must conform to the WGS84 standard. Values must be within normalized ranges.
        - `latitude` number, double: The latitude in degrees. It must be in the range [-90.0, +90.0].
        - `longitude` number, double: The longitude in degrees. It must be in the range [-180.0, +180.0].
  - `tools` GoogleCloudAiplatformV1Tool[]: Optional. Input only. Immutable. A list of `Tools` the model may use to generate the next response
    - `codeExecution` GoogleCloudAiplatformV1ToolCodeExecution: Tool that executes code generated by the model, and automatically returns the result to the model. See also ExecutableCode and CodeExecutionResult, which are input and output to this tool.
    - `computerUse` GoogleCloudAiplatformV1ToolComputerUse: A tool that enables the model to interact directly with a computer environment.
      - `disabledSafetyPolicies` string[]: Optional. A list of safety policies to disable for the computer use tool.
      - `enablePromptInjectionDetection` boolean: Optional. Whether to enable the prompt injection detection check on the computer use request.
      - `environment` 'ENVIRONMENT_UNSPECIFIED' | 'ENVIRONMENT_BROWSER' | 'ENVIRONMENT_MOBILE' | 'ENVIRONMENT_DESKTOP': Required. The target environment where the computer use tool operates.
      - `excludedPredefinedFunctions` string[]: Optional. A list of predefined functions to explicitly exclude from the model call. By default, [predefined functions](https://cloud.google.com/vertex-ai/generative-ai/docs/computer-use#supported-actions) are included. Excluding functions allows for a more restricted action space or custom definitions for predefined functions.
    - `enterpriseWebSearch` GoogleCloudAiplatformV1EnterpriseWebSearch: Tool to search public web data, powered by Vertex AI Search and Sec4 compliance.
      - `blockingConfidence` 'PHISH_BLOCK_THRESHOLD_UNSPECIFIED' | 'BLOCK_LOW_AND_ABOVE' | 'BLOCK_MEDIUM_AND_ABOVE' | 'BLOCK_HIGH_AND_ABOVE' | 'BLOCK_HIGHER_AND_ABOVE' | 'BLOCK_VERY_HIGH_AND_ABOVE' | 'BLOCK_ONLY_EXTREMELY_HIGH': Optional. Sites with confidence level chosen & above this value will be blocked from the search results.
      - `excludeDomains` string[]: Optional. List of domains to be excluded from the search results. The default limit is 2000 domains.
    - `exaAiSearch` GoogleCloudAiplatformV1ToolExaAiSearch: ExaAiSearch tool type. A tool that uses the Exa.ai search engine for grounding.
      - `apiKey` string: Required. The API key for ExaAiSearch.
      - `customConfigs` object: Optional. This field can be used to pass any parameter from the Exa.ai Search API.
    - `functionDeclarations` GoogleCloudAiplatformV1FunctionDeclaration[]: Optional. Function tool type. One or more function declarations to be passed to the model along with the current user query. Model may decide to call a subset of these functions by populating FunctionCall in the response. User should provide a FunctionResponse for each function call in the next turn. Based on the function responses, Model will generate the final response back to the user. Maximum 512 function declarations can be provided.
      - `behavior` 'UNSPECIFIED' | 'BLOCKING' | 'NON_BLOCKING': Optional. Specifies the function Behavior. If not specified, the system keeps the current function call behavior. This field is currently only supported by the BidiGenerateContent method.
      - `description` string: Optional. Description and purpose of the function. Model uses it to decide how and whether to call the function.
      - `name` string: Required. The name of the function to call. Must start with a letter or an underscore. Must be a-z, A-Z, 0-9, or contain underscores, dots, colons and dashes, with a maximum length of 128.
      - `parameters` GoogleCloudAiplatformV1Schema: Defines the schema of input and output data. This is a subset of the [OpenAPI 3.0 Schema Object](https://spec.openapis.org/oas/v3.0.3#schema-object).
        - `additionalProperties` unknown
        - `anyOf` GoogleCloudAiplatformV1Schema[]: Optional. The instance must be valid against any (one or more) of the subschemas listed in `any_of`.
        - `default` unknown
        - `defs` object: Optional. `defs` provides a map of schema definitions that can be reused by `ref` elsewhere in the schema. Only allowed at root level of the schema.
        - `description` string: Optional. Describes the data. The model uses this field to understand the purpose of the schema and how to use it. It is a best practice to provide a clear and descriptive explanation for the schema and its properties here, rather than in the prompt.
        - `enum` string[]: Optional. Possible values of the field. This field can be used to restrict a value to a fixed set of values. To mark a field as an enum, set `format` to `enum` and provide the list of possible values in `enum`. For example: 1. To define directions: `{type:STRING, format:enum, enum:["EAST", "NORTH", "SOUTH", "WEST"]}` 2. To define apartment numbers: `{type:INTEGER, format:enum, enum:["101", "201", "301"]}`
        - `example` unknown
        - `format` string: Optional. The format of the data. For `NUMBER` type, format can be `float` or `double`. For `INTEGER` type, format can be `int32` or `int64`. For `STRING` type, format can be `email`, `byte`, `date`, `date-time`, `password`, and other formats to further refine the data type.
        - `items` GoogleCloudAiplatformV1Schema (recursive)
        - `maxItems` string, int64: Optional. If type is `ARRAY`, `max_items` specifies the maximum number of items in an array.
        - `maxLength` string, int64: Optional. If type is `STRING`, `max_length` specifies the maximum length of the string.
        - `maxProperties` string, int64: Optional. If type is `OBJECT`, `max_properties` specifies the maximum number of properties that can be provided.
        - `maximum` number, double: Optional. If type is `INTEGER` or `NUMBER`, `maximum` specifies the maximum allowed value.
        - `minItems` string, int64: Optional. If type is `ARRAY`, `min_items` specifies the minimum number of items in an array.
        - `minLength` string, int64: Optional. If type is `STRING`, `min_length` specifies the minimum length of the string.
        - `minProperties` string, int64: Optional. If type is `OBJECT`, `min_properties` specifies the minimum number of properties that can be provided.
        - `minimum` number, double: Optional. If type is `INTEGER` or `NUMBER`, `minimum` specifies the minimum allowed value.
        - `nullable` boolean: Optional. Indicates if the value of this field can be null.
        - `pattern` string: Optional. If type is `STRING`, `pattern` specifies a regular expression that the string must match.
        - `properties` object: Optional. If type is `OBJECT`, `properties` is a map of property names to schema definitions for each property of the object.
        - `propertyOrdering` string[]: Optional. Order of properties displayed or used where order matters. This is not a standard field in OpenAPI specification, but can be used to control the order of properties.
        - `ref` string: Optional. Allows referencing another schema definition to use in place of this schema. The value must be a valid reference to a schema in `defs`. For example, the following schema defines a reference to a schema node named "Pet": type: object properties: pet: ref: #/defs/Pet defs: Pet: type: object properties: name: type: string The value of the "pet" property is a reference to the schema node named "Pet". See details in https://json-schema.org/understanding-json-schema/structuring
        - `required` string[]: Optional. If type is `OBJECT`, `required` lists the names of properties that must be present.
        - `title` string: Optional. Title for the schema.
        - `type` 'TYPE_UNSPECIFIED' | 'STRING' | 'NUMBER' | 'INTEGER' | 'BOOLEAN' | 'ARRAY' | 'OBJECT' | 'NULL': Optional. Data type of the schema field.
      - `parametersJsonSchema` unknown
      - `response` GoogleCloudAiplatformV1Schema: Defines the schema of input and output data. This is a subset of the [OpenAPI 3.0 Schema Object](https://spec.openapis.org/oas/v3.0.3#schema-object).
        - `additionalProperties` unknown
        - `anyOf` GoogleCloudAiplatformV1Schema[]: Optional. The instance must be valid against any (one or more) of the subschemas listed in `any_of`.
        - `default` unknown
        - `defs` object: Optional. `defs` provides a map of schema definitions that can be reused by `ref` elsewhere in the schema. Only allowed at root level of the schema.
        - `description` string: Optional. Describes the data. The model uses this field to understand the purpose of the schema and how to use it. It is a best practice to provide a clear and descriptive explanation for the schema and its properties here, rather than in the prompt.
        - `enum` string[]: Optional. Possible values of the field. This field can be used to restrict a value to a fixed set of values. To mark a field as an enum, set `format` to `enum` and provide the list of possible values in `enum`. For example: 1. To define directions: `{type:STRING, format:enum, enum:["EAST", "NORTH", "SOUTH", "WEST"]}` 2. To define apartment numbers: `{type:INTEGER, format:enum, enum:["101", "201", "301"]}`
        - `example` unknown
        - `format` string: Optional. The format of the data. For `NUMBER` type, format can be `float` or `double`. For `INTEGER` type, format can be `int32` or `int64`. For `STRING` type, format can be `email`, `byte`, `date`, `date-time`, `password`, and other formats to further refine the data type.
        - `items` GoogleCloudAiplatformV1Schema (recursive)
        - `maxItems` string, int64: Optional. If type is `ARRAY`, `max_items` specifies the maximum number of items in an array.
        - `maxLength` string, int64: Optional. If type is `STRING`, `max_length` specifies the maximum length of the string.
        - `maxProperties` string, int64: Optional. If type is `OBJECT`, `max_properties` specifies the maximum number of properties that can be provided.
        - `maximum` number, double: Optional. If type is `INTEGER` or `NUMBER`, `maximum` specifies the maximum allowed value.
        - `minItems` string, int64: Optional. If type is `ARRAY`, `min_items` specifies the minimum number of items in an array.
        - `minLength` string, int64: Optional. If type is `STRING`, `min_length` specifies the minimum length of the string.
        - `minProperties` string, int64: Optional. If type is `OBJECT`, `min_properties` specifies the minimum number of properties that can be provided.
        - `minimum` number, double: Optional. If type is `INTEGER` or `NUMBER`, `minimum` specifies the minimum allowed value.
        - `nullable` boolean: Optional. Indicates if the value of this field can be null.
        - `pattern` string: Optional. If type is `STRING`, `pattern` specifies a regular expression that the string must match.
        - `properties` object: Optional. If type is `OBJECT`, `properties` is a map of property names to schema definitions for each property of the object.
        - `propertyOrdering` string[]: Optional. Order of properties displayed or used where order matters. This is not a standard field in OpenAPI specification, but can be used to control the order of properties.
        - `ref` string: Optional. Allows referencing another schema definition to use in place of this schema. The value must be a valid reference to a schema in `defs`. For example, the following schema defines a reference to a schema node named "Pet": type: object properties: pet: ref: #/defs/Pet defs: Pet: type: object properties: name: type: string The value of the "pet" property is a reference to the schema node named "Pet". See details in https://json-schema.org/understanding-json-schema/structuring
        - `required` string[]: Optional. If type is `OBJECT`, `required` lists the names of properties that must be present.
        - `title` string: Optional. Title for the schema.
        - `type` 'TYPE_UNSPECIFIED' | 'STRING' | 'NUMBER' | 'INTEGER' | 'BOOLEAN' | 'ARRAY' | 'OBJECT' | 'NULL': Optional. Data type of the schema field.
      - `responseJsonSchema` unknown
    - `googleMaps` GoogleCloudAiplatformV1GoogleMaps: Tool to retrieve public maps data for grounding, powered by Google.
      - `enableWidget` boolean: Optional. Deprecated: The Google Maps contextual widget behavior in Grounding with Google Maps is being deprecated; this field is planned for removal and no longer has any effect once removed. If true, include the widget context token in the response.
      - `groundingTypes` GoogleCloudAiplatformV1GoogleMapsGroundingTypes: Defines the types of Google Maps grounding that can be enabled and their configurations.
        - `places` GoogleCloudAiplatformV1GoogleMapsPlaces: Grounding with Google Maps Places data (e.g. QueryPlaces). This is the default Google Maps grounding type when no other type is specified.
        - `routing` GoogleCloudAiplatformV1GoogleMapsRouting: Grounding with Google Maps Routing APIs (ComputeRoutes and SearchAlongRoute).
    - `googleSearch` GoogleCloudAiplatformV1ToolGoogleSearch: GoogleSearch tool type. Tool to support Google Search in Model. Powered by Google.
      - `blockingConfidence` 'PHISH_BLOCK_THRESHOLD_UNSPECIFIED' | 'BLOCK_LOW_AND_ABOVE' | 'BLOCK_MEDIUM_AND_ABOVE' | 'BLOCK_HIGH_AND_ABOVE' | 'BLOCK_HIGHER_AND_ABOVE' | 'BLOCK_VERY_HIGH_AND_ABOVE' | 'BLOCK_ONLY_EXTREMELY_HIGH': Optional. Sites with confidence level chosen & above this value will be blocked from the search results.
      - `excludeDomains` string[]: Optional. List of domains to be excluded from the search results. The default limit is 2000 domains. Example: ["amazon.com", "facebook.com"].
      - `searchTypes` GoogleCloudAiplatformV1ToolGoogleSearchSearchTypes: Different types of search that can be enabled on the GoogleSearch tool.
        - `imageSearch` GoogleCloudAiplatformV1ToolGoogleSearchImageSearch: Image search for grounding and related configurations.
        - `webSearch` GoogleCloudAiplatformV1ToolGoogleSearchWebSearch: Standard web search for grounding and related configurations. Only text results are returned.
    - `googleSearchRetrieval` GoogleCloudAiplatformV1GoogleSearchRetrieval: Tool to retrieve public web data for grounding, powered by Google.
      - `dynamicRetrievalConfig` GoogleCloudAiplatformV1DynamicRetrievalConfig: Describes the options to customize dynamic retrieval.
        - `dynamicThreshold` number, float: Optional. The threshold to be used in dynamic retrieval. If not set, a system default value is used.
        - `mode` 'MODE_UNSPECIFIED' | 'MODE_DYNAMIC': The mode of the predictor to be used in dynamic retrieval.
    - `parallelAiSearch` GoogleCloudAiplatformV1ToolParallelAiSearch: ParallelAiSearch tool type. A tool that uses the Parallel.ai search engine for grounding.
      - `apiKey` string: Optional. The API key for ParallelAiSearch. If an API key is not provided, the system will attempt to verify access by checking for an active Parallel.ai subscription through the Google Cloud Marketplace. See https://docs.parallel.ai/search/search-quickstart for more details.
      - `customConfigs` object: Optional. Custom configs for ParallelAiSearch. This field can be used to pass any parameter from the Parallel.ai Search API. See the Parallel.ai documentation for the full list of available parameters and their usage: https://docs.parallel.ai/api-reference/search-beta/search Currently only `source_policy`, `excerpts`, `max_results`, `mode`, `fetch_policy` can be set via this field. For example: { "source_policy": { "include_domains": ["google.com", "wikipedia.org"], "exclude_domains": ["example.com"] }, "fetch_policy": { "max_age_seconds": 3600 } }
      - `enableDataRetention` boolean: Optional. Deprecated: Use `enable_zero_data_retention` instead. Instructs Vertex Grounding to use Parallel's Zero Data Retention Marketplace product. If this value is "false" or omitted, the Parallel Web Search for Grounding standard subscription will be used. If this value is "true", the Parallel Web Search for Grounding - ZDR subscription will be used.
      - `enableZeroDataRetention` boolean: Optional. Instructs Vertex Grounding to use Parallel's Zero Data Retention Marketplace product. If this value is "false" or omitted, the Parallel Web Search for Grounding standard subscription will be used. If this value is "true", the Parallel Web Search for Grounding - ZDR subscription will be used.
    - `retrieval` GoogleCloudAiplatformV1Retrieval: Defines a retrieval tool that model can call to access external knowledge.
      - `disableAttribution` boolean: Optional. Deprecated. This option is no longer supported.
      - `externalApi` GoogleCloudAiplatformV1ExternalApi: Retrieve from data source powered by external API for grounding. The external API is not owned by Google, but need to follow the pre-defined API spec.
        - `apiAuth` GoogleCloudAiplatformV1ApiAuth: The generic reusable api auth config. Deprecated. Please use AuthConfig (google/cloud/aiplatform/master/auth.proto) instead.
          - `apiKeyConfig` GoogleCloudAiplatformV1ApiAuthApiKeyConfig: The API secret.
            - `apiKeySecretVersion` string: Required. The SecretManager secret version resource name storing API key. e.g. projects/{project}/secrets/{secret}/versions/{version}
            - `apiKeyString` string: The API key string. Either this or `api_key_secret_version` must be set.
        - `apiSpec` 'API_SPEC_UNSPECIFIED' | 'SIMPLE_SEARCH' | 'ELASTIC_SEARCH': The API spec that the external API implements.
        - `authConfig` GoogleCloudAiplatformV1AuthConfig: Auth configuration to run the extension.
          - `apiKeyConfig` GoogleCloudAiplatformV1AuthConfigApiKeyConfig: Config for authentication with API key.
            - `apiKeySecret` string: Optional. The name of the SecretManager secret version resource storing the API key. Format: `projects/{project}/secrets/{secrete}/versions/{version}` - If both `api_key_secret` and `api_key_string` are specified, this field takes precedence over `api_key_string`. - If specified, the `secretmanager.versions.access` permission should be granted to Vertex AI Extension Service Agent (https://cloud.google.com/vertex-ai/docs/general/access-control#service-agents) on the specified resource.
            - `apiKeyString` string: Optional. The API key to be used in the request directly.
            - `httpElementLocation` 'HTTP_IN_UNSPECIFIED' | 'HTTP_IN_QUERY' | 'HTTP_IN_HEADER' | 'HTTP_IN_PATH' | 'HTTP_IN_BODY' | 'HTTP_IN_COOKIE': Optional. The location of the API key.
            - `name` string: Optional. The parameter name of the API key. E.g. If the API request is "https://example.com/act?api_key=", "api_key" would be the parameter name.
          - `authType` 'AUTH_TYPE_UNSPECIFIED' | 'NO_AUTH' | 'API_KEY_AUTH' | 'HTTP_BASIC_AUTH' | 'GOOGLE_SERVICE_ACCOUNT_AUTH' | 'OAUTH' | 'OIDC_AUTH': Type of auth scheme.
          - `googleServiceAccountConfig` GoogleCloudAiplatformV1AuthConfigGoogleServiceAccountConfig: Config for Google Service Account Authentication.
            - `serviceAccount` string: Optional. The service account that the extension execution service runs as. - If the service account is specified, the `iam.serviceAccounts.getAccessToken` permission should be granted to Vertex AI Extension Service Agent (https://cloud.google.com/vertex-ai/docs/general/access-control#service-agents) on the specified service account. - If not specified, the Vertex AI Extension Service Agent will be used to execute the Extension.
          - `httpBasicAuthConfig` GoogleCloudAiplatformV1AuthConfigHttpBasicAuthConfig: Config for HTTP Basic Authentication.
            - `credentialSecret` string: Required. The name of the SecretManager secret version resource storing the base64 encoded credentials. Format: `projects/{project}/secrets/{secrete}/versions/{version}` - If specified, the `secretmanager.versions.access` permission should be granted to Vertex AI Extension Service Agent (https://cloud.google.com/vertex-ai/docs/general/access-control#service-agents) on the specified resource.
          - `oauthConfig` GoogleCloudAiplatformV1AuthConfigOauthConfig: Config for user oauth.
            - `accessToken` string: Access token for extension endpoint. Only used to propagate token from [[ExecuteExtensionRequest.runtime_auth_config]] at request time.
            - `serviceAccount` string: The service account used to generate access tokens for executing the Extension. - If the service account is specified, the `iam.serviceAccounts.getAccessToken` permission should be granted to Vertex AI Extension Service Agent (https://cloud.google.com/vertex-ai/docs/general/access-control#service-agents) on the provided service account.
          - `oidcConfig` GoogleCloudAiplatformV1AuthConfigOidcConfig: Config for user OIDC auth.
            - `idToken` string: OpenID Connect formatted ID token for extension endpoint. Only used to propagate token from [[ExecuteExtensionRequest.runtime_auth_config]] at request time.
            - `serviceAccount` string: The service account used to generate an OpenID Connect (OIDC)-compatible JWT token signed by the Google OIDC Provider (accounts.google.com) for extension endpoint (https://cloud.google.com/iam/docs/create-short-lived-credentials-direct#sa-credentials-oidc). - The audience for the token will be set to the URL in the server url defined in the OpenApi spec. - If the service account is provided, the service account should grant `iam.serviceAccounts.getOpenIdToken` permission to Vertex AI Extension Service Agent (https://cloud.google.com/vertex-ai/docs/general/access-control#service-agents).
        - `elasticSearchParams` GoogleCloudAiplatformV1ExternalApiElasticSearchParams: The search parameters to use for the ELASTIC_SEARCH spec.
          - `index` string: The ElasticSearch index to use.
          - `numHits` integer: Optional. Number of hits (chunks) to request. When specified, it is passed to Elasticsearch as the `num_hits` param.
          - `searchTemplate` string: The ElasticSearch search template to use.
        - `endpoint` string: The endpoint of the external API. The system will call the API at this endpoint to retrieve the data for grounding. Example: https://acme.com:443/search
        - `simpleSearchParams` GoogleCloudAiplatformV1ExternalApiSimpleSearchParams: The search parameters to use for SIMPLE_SEARCH spec.
      - `vertexAiSearch` GoogleCloudAiplatformV1VertexAISearch: Retrieve from Vertex AI Search datastore or engine for grounding. datastore and engine are mutually exclusive. See https://cloud.google.com/products/agent-builder
        - `dataStoreSpecs` GoogleCloudAiplatformV1VertexAISearchDataStoreSpec[]: Specifications that define the specific DataStores to be searched, along with configurations for those data stores. This is only considered for Engines with multiple data stores. It should only be set if engine is used.
          - `dataStore` string: Full resource name of DataStore, such as Format: `projects/{project}/locations/{location}/collections/{collection}/dataStores/{dataStore}`
          - `filter` string: Optional. Filter specification to filter documents in the data store specified by data_store field. For more information on filtering, see [Filtering](https://cloud.google.com/generative-ai-app-builder/docs/filter-search-metadata)
        - `datastore` string: Optional. Fully-qualified Vertex AI Search data store resource ID. Format: `projects/{project}/locations/{location}/collections/{collection}/dataStores/{dataStore}`
        - `engine` string: Optional. Fully-qualified Vertex AI Search engine resource ID. Format: `projects/{project}/locations/{location}/collections/{collection}/engines/{engine}`
        - `filter` string: Optional. Filter strings to be passed to the search API.
        - `maxResults` integer: Optional. Number of search results to return per query. The default value is 10. The maximumm allowed value is 10.
      - `vertexRagStore` GoogleCloudAiplatformV1VertexRagStore: Retrieve from Vertex RAG Store for grounding.
        - `ragResources` GoogleCloudAiplatformV1VertexRagStoreRagResource[]: Optional. The representation of the rag source. It can be used to specify corpus only or ragfiles. Currently only support one corpus or multiple files from one corpus. In the future we may open up multiple corpora support.
          - `ragCorpus` string: Optional. RagCorpora resource name. Format: `projects/{project}/locations/{location}/ragCorpora/{rag_corpus}`
          - `ragFileIds` string[]: Optional. rag_file_id. The files should be in the same rag_corpus set in rag_corpus field.
        - `ragRetrievalConfig` GoogleCloudAiplatformV1RagRetrievalConfig: Specifies the context retrieval config.
          - `filter` GoogleCloudAiplatformV1RagRetrievalConfigFilter: Config for filters.
            - `metadataFilter` string: Optional. String for metadata filtering.
            - `vectorDistanceThreshold` number, double: Optional. Only returns contexts with vector distance smaller than the threshold.
            - `vectorSimilarityThreshold` number, double: Optional. Only returns contexts with vector similarity larger than the threshold.
          - `ranking` GoogleCloudAiplatformV1RagRetrievalConfigRanking: Config for ranking and reranking.
            - `llmRanker` GoogleCloudAiplatformV1RagRetrievalConfigRankingLlmRanker: Config for LlmRanker.
              - …
            - `rankService` GoogleCloudAiplatformV1RagRetrievalConfigRankingRankService: Config for Rank Service.
              - …
          - `topK` integer: Optional. The number of contexts to retrieve.
        - `similarityTopK` integer: Optional. Number of top k results to return from the selected corpora.
        - `vectorDistanceThreshold` number, double: Optional. Only return results with vector distance smaller than the threshold.
    - `urlContext` GoogleCloudAiplatformV1UrlContext: Tool to support URL context.
  - `ttl` string, google-duration: Input only. The TTL for this resource. The expiration time is computed: now + TTL.
  - `updateTime` string, google-datetime: Output only. When the cache entry was last updated in UTC time.
  - `usageMetadata` GoogleCloudAiplatformV1CachedContentUsageMetadata: Metadata on the usage of the cached content.
    - `audioDurationSeconds` integer: Duration of audio in seconds.
    - `imageCount` integer: Number of images.
    - `textCount` integer: Number of text characters.
    - `totalTokenCount` integer: Total number of tokens that the cached content consumes.
    - `videoDurationSeconds` integer: Duration of video in seconds.

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[API](https://skmtc.dev/google/apis/aiplatform.md) - [All operations](https://skmtc.dev/google/apis/aiplatform/llms.txt) - [OpenAPI document](https://skmtc.dev/google/apis/aiplatform/revisions/3aca3b348f0c?raw)
