code: def make_level_set(level):
      '''make level set will convert one level into
      a set'''
      new_level = dict()
      for key,value in level.items():
          if isinstance(value,list):
              new_level[key] = set(value)
          else:
              new_level[key] = value
      return new_levef make_level_set(level):
      '''make level set will convert one level into
      a set'''
      new_level = dict()
      for key,value in level.items():
          if isinstance(value,list):
              new_level[key] = set(value)
          else:
              new_level[key] = value
      return new_level
docs: make level set will convert one level into
      a set