code: def _pprint_mappingproxy(
      self, object, stream, indent, allowance, context, level
  ):
      stream.write("mappingproxy(")
      self._format(
          object.copy(),
          stream,
          indent + 13,
          allowance + 1,
          context,
          level,
      )
      stream.write(")")
  
imports: import collections
  import dataclasses
  import re
  import sys
  import types
  from io import StringIO
label_desc: Use image node_id 16 for calling the PrettyPrinter obj's underlying member method code with example usage: obj._pprint_mappingproxy(object, stream, indent, allowance, context, level) without return types