class_docstr: Class for a set of points of type Point.
code: def __init__(self, equip=True):
      if equip:
          self.equip_with_metric()
  
imports: import functools
  import itertools
  from abc import ABC, abstractmethod
label_desc: Use image node_id 1 to create a new PointSet object from inherited base classes: ABC with example: obj = PointSet(equip)