class SynchronizerError(Exception):
    pass


class VendorSpecificSynchronizerError(SynchronizerError):
    pass


class YoutubeSynchronizerError(VendorSpecificSynchronizerError):
    pass


class DeezerSynchronizerError(VendorSpecificSynchronizerError):
    pass


class SpotifySynchronizerError(VendorSpecificSynchronizerError):
    pass


class AppleMusicSynchronizerError(VendorSpecificSynchronizerError):
    pass