def METHOD_NAME():
    m = pyo.ConcreteModel()
    m.fs = idaes.core.FlowsheetBlock(dynamic=False)
    m.fs.properties = iapws95.Iapws95ParameterBlock()
    m.fs.unit = HelmSplitter(
        property_package=m.fs.properties, outlet_list=["o1", "o2", "o3"]
    )
    Fin = 1e4  # mol/s
    hin = 4000  # J/mol
    Pin = 101325  # Pa
    m.fs.unit.inlet.flow_mol[0].fix(Fin)
    m.fs.unit.inlet.enth_mol[0].fix(hin)
    m.fs.unit.inlet.pressure[0].fix(Pin)
    m.fs.unit.split_fraction[0, "o2"] = 0.3
    m.fs.unit.split_fraction[0, "o3"] = 0.2
    m.fs.unit.initialize()
    assert pyo.value(m.fs.unit.o1.flow_mol[0]) == pytest.approx(1e4 * 0.5, rel=1e-7)
    assert pyo.value(m.fs.unit.o2.flow_mol[0]) == pytest.approx(1e4 * 0.3, rel=1e-7)
    assert pyo.value(m.fs.unit.o3.flow_mol[0]) == pytest.approx(1e4 * 0.2, rel=1e-7)
    assert pyo.value(m.fs.unit.o1.pressure[0]) == pytest.approx(101325, rel=1e-7)
    assert pyo.value(m.fs.unit.o2.pressure[0]) == pytest.approx(101325, rel=1e-7)
    assert pyo.value(m.fs.unit.o3.pressure[0]) == pytest.approx(101325, rel=1e-7)
    assert pyo.value(m.fs.unit.o1.enth_mol[0]) == pytest.approx(4000, rel=1e-7)
    assert pyo.value(m.fs.unit.o2.enth_mol[0]) == pytest.approx(4000, rel=1e-7)
    assert pyo.value(m.fs.unit.o3.enth_mol[0]) == pytest.approx(4000, rel=1e-7)