code: def indent(self):
      return " " * (2 * self.exception_group_depth)
  
imports: import collections.abc
  import itertools
  import linecache
  import sys
  import textwrap
  from contextlib import suppress
label_desc: Use image node_id 2 for calling the _ExceptionPrintContext obj's underlying member method code with example usage: obj.indent() and returns: unknown