def METHOD_NAME():
    class Test(param.Parameterized):
        a = param.Number(default=3.14)
    test = Test()
    widget = FloatSlider.from_param(test.param.a, start=0.3, end=5.2)
    assert isinstance(widget, FloatSlider)
    assert widget.name == 'A'
    assert widget.start == 0.3
    assert widget.end == 5.2
    assert widget.value == 3.14
    test.a = 1.57
    assert widget.value == 1.57
    widget.value = 4.3
    assert test.a == 4.3