def METHOD_NAME():
    m = pyo.ConcreteModel()
    m.fs = FlowsheetBlock(dynamic=False)
    m.fs.properties = iapws95.Iapws95ParameterBlock()
    m.fs.unit = Downcomer(
        property_package=m.fs.properties, has_holdup=False, has_heat_transfer=True
    )
    return m