code: def __hash__(self):
      return hash(self.dirname + ":" + str(self.pattern_list))
  
imports: import os
  import re
  from collections import namedtuple
  from itertools import chain, groupby, takewhile
  from typing import TYPE_CHECKING, List, Optional
  from pathspec.patterns import GitWildMatchPattern
  from pathspec.util import normalize_file
  from pygtrie import Trie
  from dvc.fs import Schemes, localfs
  from dvc.log import logger
  from dvc.pathspec_math import PatternInfo, merge_patterns
label_desc: Use image node_id 8 for calling the DvcIgnorePatterns obj's underlying member method code with example usage: obj.__hash__() and returns: hash