def METHOD_NAME(self) -> None:
    # Arrange
    action = DeclinedInstructorsAction(
        trigger=self.trigger,
        objects=dict(
            recruitment=self.recruitment,
            event=self.recruitment.event,
            person=self.person,
        ),
    )
    # Act
    emails = action.all_recipients()
    # Assert
    self.assertEqual(emails, "test1@example.org")