def append_to_list(self, list_, *values):
        for value in values:
            list_.append(value)
A trail is a walk in which all the edges are distinct.
dataset/ETHPy150Open shellderp/sublime-robot-plugin/lib/robot/libraries/Collections.py/_List.append_to_list--crossover with--dataset/ETHPy150Open christabor/MoAL/MOAL/data_structures/graphs/graphs.py/Graph.is_trail