code: def __repr__(self):
      return (
          f"Node_id: {self.node_id}, Color: {self.color}, "
          f"Adj_list: ({self.adj_list}), adj_color: ({self.adj_color})"
      )
  
imports: import itertools
  from collections import defaultdict, deque
  import networkx
  from networkx.utils import arbitrary_element, py_random_state
label_desc: Use image node_id 2 for calling the _Node obj's underlying member method code with example usage: obj.__repr__() and returns: str, self, str, self, str, self, str, self, str