# Pastebin Hz2qbojo
class ExternalServiceError(Exception):
    """ Base exception for all errors coming from external service integrations."""
    pass


class ExternalServiceInvalidGrantError(ExternalServiceError):
    """ Raised if the external music services' API returns invalid_grant during authorization.
    This usually means that the user has revoked authorization to the ListenBrainz application
    through external means without unlinking the account from ListenBrainz.
    """
    pass


class ExternalServiceAPIError(ExternalServiceError):
    """ Raise in case of api errors from external services. """
    pass

class ExternalServiceImporterError(ExternalServiceError):
    """ Base exception for errors raised in the listens importer service."""
    pass