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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_qemu_img_stdout(self):
 """ Reads the standard output of the QEMU-IMG process. """


        output = ""
        if self._qemu_img_stdout_file:
            try:
                with open(self._qemu_img_stdout_file, "rb") as file:
                    output = file.read().decode("utf-8", errors="replace")
            except OSError as e:
                log.warning("Could not read {}: {}".format(self._qemu_img_stdout_file, e))
        return output