code: def __eq__(self, dt):
      return (
          self.priority == dt.priority
          and self.itemsize == dt.itemsize
          and self.name == dt.name
          and self.sz == dt.sz
      )
  
imports: from typing import Final, Optional, ClassVar, Set, Tuple, Dict
  from dataclasses import dataclass
  import numpy
  import functools
label_desc: Use image node_id 4 for calling the PtrDType obj's underlying member method code with example usage: obj.__eq__(dt) and returns: unknown