def METHOD_NAME() -> None:
    project = Project()
    assert not project.sessions
    session1 = Session(project)
    project.add_sessions(session1)
    assert session1.label == project.sessions[0].label
    session2 = Session(project)
    project.add_sessions(session2)
    assert len(project.sessions) == 2
    assert session2.label == project.sessions[1].label