code: def register_frame_to_skip(cls, file_name, function_name, line_number=None):
      
      if line_number is not None:
        cls._frames_to_skip.add((file_name, function_name, line_number))
      else:
        cls._frames_to_skip.add((file_name, function_name))
docs: Registers a function name to skip when walking the stack.
  
      The ABSLLogger sometimes skips method calls on the stack
      to make the log messages meaningful in their appropriate context.
      This method registers a function from a particular file as one
      which should be skipped.
  
      Args:
        file_name: str, the name of the file that contains the function.
        function_name: str, the name of the function to skip.
        line_number: int, if provided, only the function with this starting line
            number will be skipped. Otherwise, all functions with the same name
            in the file will be skipped.