class_docstr: Handles metadata supplied in configuration files.
class_docstr_tok: ["Handles","metadata","supplied","in","configuration","files","."]
docstr: Metadata item name to parser function mapping.
docstr_tok: ["Metadata","item","name","to","parser","function","mapping","."]
code: def parsers(self):
      """Metadata item name to parser function mapping."""
      raise NotImplementedError(
          "%s must provide .parsers property" % self.__class__.__name__
      )
  
imports: from __future__ import absolute_import, unicode_literals
  import io
  import os
  import sys
  import warnings
  import functools
  from collections import defaultdict
  from functools import partial
  from functools import wraps
  from importlib import import_module
  from distutils.errors import DistutilsOptionError, DistutilsFileError
  from setuptools.extern.packaging.version import LegacyVersion, parse
  from setuptools.extern.packaging.specifiers import SpecifierSet
  from setuptools.extern.six import string_types, PY3
label_desc: Use image node_id 2 for calling the ConfigHandler obj's underlying member method code with example usage: obj.parsers() without return types