Changes to Complete sends the messages of a chat to the AI and asks it to generate a new message.

added the new optional request property includeReasoning

added the new optional request property messages/items/content/items/reasoning

added the optional property cacheWriteInputTokens to the response with the 200 status

added the optional property message/content/items/reasoning to the response with the 200 status

added the optional property cachedInputTokens to the response with the 200 status

added the optional property provider to the response with the 200 status

added the new optional request property tools/items/displayName

added the new optional request property tools/items/meta

added the new optional request property tools/items/outputSchema