Create a new secret for a given service.

The Example model contains models for all services that can be created. When calling this endpoint for a specific service, only the credentials for that service should be provided in the payload.

The payload should be structured with the credentials inside a 'credentials' key. For example, for an S3 integration:

{ "credentials": { "alias": "my-s3-integration", "target": "my-target", "name": "my-bucket-name" } }

Not all fields from all_input_models need to be sent in the payload, only those relevant to the specific service being created.

Response will be the instance credentials that was created.