code: def __repr__(self):
      col_next = (
          None if self.col_next is None else self.col_next.node_id
      )
      col_prev = (
          None if self.col_prev is None else self.col_prev.node_id
      )
      return (
          f"Node_id: {self.node_id}, Next: ({self.next}), "
          f"Mate: ({self.mate.node_id}), "
          f"col_next: ({col_next}), col_prev: ({col_prev})"
      )
  
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 _AdjEntry obj's underlying member method code with example usage: obj.__repr__() and returns: str, self, str, self, str, self, str, col_next, str, col_prev, str