def __init__(self, path):
    super(MainMakefileAMFile, self).__init__()
    self._path = path

    self.libraries = []
Returns pairs of rings, which meet pi stacking criteria
dataset/ETHPy150Open libyal/libyal/scripts/source-generate.py/MainMakefileAMFile.__init__--crossover with--dataset/ETHPy150Open oddt/oddt/oddt/interactions.py/pi_stacking