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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def chunk_audio_pieces(self, pieces, chunk_size):
 """Convert chunks of audio into a series of equally sized pieces"""

        left_over = np.array([])
        for piece in pieces:
            if left_over.size == 0:
                combined = piece
            else:
                combined = np.concatenate([left_over, piece], axis=-1)
            for chunk in chunk_audio(combined.T, chunk_size):
                yield chunk.T
            left_over = piece[-(len(piece) % chunk_size):]