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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 read(self, size=None):
 """Read `size` bytes from stream."""

        blob = self.s.read(size)
        if size is not None and len(blob) < size:
            raise EOFError
        if self._captured:
            self._captured.write(blob)
        return blob