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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def state_check_collisions( state_engine, nameop, history_id_key, block_id, checked_ops, collision_checker ):
 """ See that there are no state-creating or state-preordering collisions at this block, for this history ID. Return True if collided; False if not """


    # verify no collisions against already-accepted names
    collision_check = getattr( state_engine, collision_checker, None )
    try:
        assert collision_check is not None, "Collision-checker '%s' not defined" % collision_checker
        assert hasattr( collision_check, "__call__" ), "Collision-checker '%s' is not callable" % collision_checker
        assert history_id_key in nameop.keys(), "History ID key '%s' not in name operation" % (history_id_key)
        assert 'op' in nameop.keys(), "BUG: no op in nameop"
    except Exception, e:
        log.exception(e)
        log.error("FATAL: incorrect state_create() decorator")
        sys.exit(1)

    rc = collision_check( nameop[history_id_key], block_id, checked_ops )
    return rc