def METHOD_NAME():
    a = solph.flows.Flow(bidirectional=True)  # use default values
    b = solph.flows.Flow(
        bidirectional=True, nominal_value=1, min=-0.8, max=0.9
    )
    assert a.bidirectional
    assert a.max[0] == 1
    assert a.min[0] == -1
    assert b.bidirectional
    assert b.max[0] == 0.9
    assert b.min[0] == -0.8