code: func (m *MockServiceDiscovery) GetServer(id string) (*cluster.Server, error) {
  	ret := m.ctrl.Call(m, "GetServer", id)
  	ret0, _ := ret[0].(*cluster.Server)
  	ret1, _ := ret[1].(error)
  	return ret0, ret1
  }
docs: // GetServer mocks base method