code: def select_pane(self, target_pane):
          
  
          if target_pane in ['-l', '-U', '-D', '-L', '-R']:
              proc = self.cmd('select-pane', '-t%s' % self.id, target_pane)
          else:
              proc = self.cmd('select-pane', '-t%s' % target_pane)
  
          if proc.stderr:
              raise exc.LibTmuxException(proc.stderr)
  
          return self.attached_pane
docs: Return selected :class:`Pane` through ``$ tmux select-pane``.
  
          Parameters
          ----------
          target_pane : str
              'target_pane', '-U' ,'-D', '-L', '-R', or '-l'.
  
          Return
          ------
          :class:`Pane`