def __call__(self, *args, **kwargs):
raise AbstractError(self.__call__)
def get(self, block=True, timeout=None):
"""Read. Block/timeout are there for Queue compat."""
raise AbstractError(self.get)
def put(self, data, block=True, timeout=None):
"""Write. Block/timeout are there for Queue compat."""
raise AbstractError(self.put)
def call(self, *args, **kwargs):
raise AbstractError('Not implemented.')