GCS Media Storage

GCSMediaStorage stores agent media in a Google Cloud Storage bucket and keeps only a MediaReference in the database.

Parameter	Type	Default	Description
`bucket`	`str`	-	Name of the destination GCS bucket.
`prefix`	`str`	`"agno/media/"`	Key prefix for stored objects.
`credentials_path`	`Optional[str]`	`None`	Path to a service-account JSON file. Supplies the private key used to sign URLs, as does `GOOGLE_APPLICATION_CREDENTIALS`.
`project`	`Optional[str]`	`None`	GCP project ID.
`presigned_url_expiry`	`int`	`3600`	Signed URL lifetime in seconds. Above the V4 maximum of seven days, signing fails and URLs fall back to streaming.
`public`	`bool`	`False`	Return the public object URL instead of a signed one. Grants no access by itself.
`persist_remote_urls`	`bool`	`False`	Download and store media passed as a URL. Skipped when `False`.

AsyncGCSMediaStorage takes the same parameters and runs each call in a worker thread.

Signing needs a credential that carries a private key, from credentials_path or a service-account JSON on GOOGLE_APPLICATION_CREDENTIALS. Application Default Credentials can also resolve to a signing service-account key. If the resolved credentials are token-only and cannot sign, get_url returns None and readers stream the bytes through download instead. public=True skips signing and always returns a URL.