code: def sync(self, force=False, safe=True, revision=0, changelist=0):
          
          cmd = ['sync']
          if force:
              cmd.append('-f')
  
          if safe:
              cmd.append('-s')
  
          if revision:
              cmd.append('{}#{}'.format(self.depotFile, revision))
          elif changelist:
              cmd.append('{}@{}'.format(self.depotFile, changelist))
          else:
              cmd.append(self.depotFile)
  
          self._connection.run(cmd)
  
          self.query()
docs: Syncs the file at the current revision
  
          :param force: Force the file to sync
          :type force: bool
          :param safe: Don't sync files that were changed outside perforce
          :type safe: bool
          :param revision: Sync to a specific revision
          :type revision: int
          :param changelist: Changelist to sync to
          :type changelist: int