docs: def find_portgroup(self, si, dv_switch_path, name):
          """
          Returns the portgroup on the dvSwitch
          :param name: str
          :param dv_switch_path: str
          :param si: service instance
          """
          dv_switch = self.get_folder(si, dv_switch_path)
          if dv_switch and dv_switch.portgroup:
              for port in dv_switch.portgroup:
                  if port.name == name:
                      return port
          return None