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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 _orphan_this_process(cls, wait_for_parent=False):
 """Orphan the current process by forking and then waiting for the parent to exit."""

        # The current PID will be the PPID of the forked child
        ppid = os.getpid()

        pid = os.fork()
        if pid > 0:
            # Exit parent
            sys.exit(0)

        if wait_for_parent and cls._pid_is_alive(ppid, timeout=1):
            raise DaemonError(
                'Parent did not exit while trying to orphan process')