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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 _smallest_buffer(self):
 """ Get the size of the smallest buffer. """


        smallest = np.inf

        for buffer in self.buffers:
            if buffer is None:
                return 0
            elif buffer.shape[0] < smallest:
                smallest = buffer.shape[0]

        return smallest