code: func (mr *MockOpenerMockRecorder) DecryptHeader(arg0, arg1, arg2 interface{}) *gomock.Call {
  	mr.mock.ctrl.T.Helper()
  	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "DecryptHeader", reflect.TypeOf((*MockOpener)(nil).DecryptHeader), arg0, arg1, arg2)
  }
docs: // DecryptHeader indicates an expected call of DecryptHeader