<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def _set_desc(self):
 """Sets the global description if any"""

        # TODO: manage different in/out styles
        if self.docs['in']['desc']:
            self.docs['out']['desc'] = self.docs['in']['desc']
        else:
            self.docs['out']['desc'] = ''