code: def move_to(self, folder_id):
      
      if not folder_id:
        raise TypeError(u"You can't move an event to a non-existant folder")
  
      if not isinstance(folder_id, BASESTRING_TYPES):
        raise TypeError(u"folder_id must be a string")
  
      if not self.id:
        raise TypeError(u"You can't move an event that hasn't been created yet.")
  
      self.refresh_change_key()
      response_xml = self.service.send(soap_request.move_event(self, folder_id))
      new_id, new_change_key = self._parse_id_and_change_key_from_response(response_xml)
      if not new_id:
        raise ValueError(u"MoveItem returned success but requested item not moved")
  
      self._id = new_id
      self._change_key = new_change_key
      self.calendar_id = folder_id
      return self
docs: :param str folder_id: The Calendar ID to where you want to move the event to.
      Moves an event to a different folder (calendar).  ::
  
        event = service.calendar().get_event(id='KEY HERE')
        event.move_to(folder_id='NEW CALENDAR KEY HERE')