Optional[customOptional[unknownOptionalcredentialsThe endpoint must be in the form of a URL, starting with the protocol (https), followed by the endpoint address without a trailing slash. Example: https://storage.us-central1.nebius.cloud
Prefix to add to the beginning of each transferred object key in the destination bucket. During transfer, the resulting object key in the destination bucket is computed by removing source.prefix (if provided) from the original key and then prepending destination.prefix. Important: This transformation may result in an empty object key or one that exceeds allowed length limits. Use prefixes that guarantee valid resulting object keys for your objects after transformation.
Credentials for accessing the destination bucket. These credentials must have head and write permissions. This parameter must be specified only during create operations.