class_docstr: WIP.
class_docstr_tok: ["WIP","."]
docstr: WIP.
docstr_tok: ["WIP","."]
code: def make_model_label(self, model_name, label):
      """WIP."""
      model_name_str = self.model_name_to_str(model_name)
      if model_name_str is None:
          return label
      if label is None or label == "":
          return model_name_str
      return f"{model_name_str}: {label}"
  
imports: from typing import Union
label_desc: Use image node_id 9 for calling the BaseLabeller obj's underlying member method code with example usage: obj.make_model_label(model_name, label) and returns: model_name_str, str, label, label, model_name_str