def METHOD_NAME(
    self,
    service_account: str = None,
    use_robocorp_vault: Optional[bool] = None,
    token_file: str = None,
) -> None:
    """Initialize Google Cloud Vision client
    :param service_account: file path to service account file
    :param use_robocorp_vault: use credentials in `Robocorp Vault`
    :param token_file: file path to token file
    """
    self.service = self.init_service_with_object(
        vision.ImageAnnotatorClient,
        service_account,
        use_robocorp_vault,
        token_file,
    )