code: def text(tag, text_string, step, walltime=None):
      """Package data to one image.
      Args:
          tag (string): Data identifier
          text_string (string): Value of text
          step (int): Step of text
          walltime (int): Wall time of text
      Return:
          Package with format of record_pb2.Record
      """
      _text = Record.Text(encoded_text_string=text_string)
      return Record(
          values=[
              Record.Value(
                  id=step, tag=tag, timestamp=walltime, text=_text
              )
          ]
      )
  
imports: import numpy
  from PIL import Image
  from visualdl.proto.record_pb2 import Record
label_desc: Use image node_id 11 for calling a global function with example usage: text(tag, text_string, step, walltime) and returns: Record