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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, b=-1):
 """Keep reading from source stream until either the source stream is done or the requested number of bytes have been obtained. :param int b: number of bytes to read :return: All bytes read from wrapped stream :rtype: bytes """

        remaining_bytes = b
        data = io.BytesIO()
        while True:
            try:
                chunk = to_bytes(self.__wrapped__.read(remaining_bytes))
            except ValueError:
                if self.__wrapped__.closed:
                    break
                raise

            if not chunk:
                break

            data.write(chunk)
            remaining_bytes -= len(chunk)

            if remaining_bytes <= 0:
                break
        return data.getvalue()