def AssignSubtypes(tree):
  subtype_assigner = _SubtypeAssigner()
  subtype_assigner.Visit(tree)

# Map tokens in argument lists to their respective subtype.
Run the subtype assigner visitor over the tree, modifying it in place.
dataset/ETHPy150Open google/yapf/yapf/yapflib/subtype_assigner.py/AssignSubtypes