code: def _get_vispy_caller():
      
      records = inspect.stack()
      # first few records are vispy-based logging calls
      for record in records[5:]:
          module = record[0].f_globals['__name__']
          if module.startswith('vispy'):
              line = str(record[0].f_lineno)
              func = record[3]
              cls = record[0].f_locals.get('self', None)
              clsname = "" if cls is None else cls.__class__.__name__ + '.'
              caller = "{0}:{1}{2}({3}): ".format(module, clsname, func, line)
              return caller
      return 'unknown'
docs: Helper to get vispy calling function from the stack