class_docstr: Formatter that optionally prepends caller
class_docstr_tok: ["Formatter","that","optionally","prepends","caller"]
code: def format(self, record):
      out = logging.Formatter.format(self, record)
      if self._vispy_prepend_caller:
          out = _get_vispy_caller() + out
      return out
  
imports: import base64
  import logging
  import sys
  import inspect
  import re
  import traceback
  import json
  from functools import partial
  import numpy
label_desc: Use image node_id 3 for calling the _VispyFormatter obj's underlying member method code with example usage: obj.format(record) and returns: out