def can_retrieve(self):
        """Checks the state of the buffer and returns whether an item can be removed from the buffer..

        :return: A boolean indicating whether an item can be returned from the buffer at the time.
        """
Checks the state of the buffer and returns whether an item can be removed from the buffer..

        :return: A boolean indicating whether an item can be returned from the buffer at the time.
        
petastorm/reader_impl/shuffling_buffer.py