code: def __hash__(self):
      return hash((type(self),) + (self.left, self.right))
  
imports: from __future__ import annotations
  import dataclasses
  from typing import Any, Callable, Sequence, Tuple
  import numpy
label_desc: Use image node_id 4 for calling the LogicalAnd obj's underlying member method code with example usage: obj.__hash__() and returns: hash