def assert_lt(lval, rval, message=None):
    """Assert that lval is less than rval."""
    if message:
        assert lval < rval, message
    else:
        assert rval < lval, 'assertion failed: %r < %r' % (lval, rval)
dataset/ETHPy150Open Yelp/Testify/testify/assertions.py/assert_lt/swapped operands of `<`