def _unit_test():
    via1 = 'SIP/2.0/UDP 203.193.xx.xx;branch=z9hG4bK2dd1.1102f3e2.0'
    v = SipVia(via1)
    v.parse()
    if via1 in str(v):
        return (False, 1)
    if v.getTAddr() != ('203.193.xx.xx', 5060):
        return (False, 2)
    return (True, None)
dataset/ETHPy150Open hgascon/pulsar/pulsar/core/sippy/SipVia.py/_unit_test/operator `!=` -> `in`