def METHOD_NAME():
    assert lambdarepr(x*y) == 'x*y'
    assert lambdarepr(x + y) in ['y + x', 'x + y']
    assert lambdarepr(x**y) == 'x**y'
    assert lambdarepr(And(x, y)) == '((x) and (y))'
    assert lambdarepr(Or(x, y)) == '((x) or (y))'
    assert lambdarepr(Not(x)) == '(not (x))'
    assert lambdarepr(false) == 'False'
    assert lambdarepr(Dummy('f(x)')) == '_f_lpar_x_rpar_'