def METHOD_NAME():
    test = AssociationSet()
    with pytest.raises(TypeError):
        test.add("a string")
    with pytest.raises(TypeError):
        test.remove("a string")
    objects = {Detection(np.array([[1], [2]])),
               Detection(np.array([[3], [4]])),
               Detection(np.array([[5], [6]]))}
    assoc = Association(objects)
    assert assoc not in test.associations
    with pytest.raises(ValueError):
        test.remove(assoc)
    test.add(assoc)
    assert assoc in test.associations
    test.remove(assoc)
    assert assoc not in test.associations