code: def on_visualize_figure(self, fig):
      # TODO: need to also include a filename for this figure
      # mlflow.log_figure(fig)
      pass
  
imports: import logging
  import os
  import queue
  import threading
  from ludwig.api_annotations import DeveloperAPI, PublicAPI
  from ludwig.callbacks import Callback
  from ludwig.constants import TRAINER
  from ludwig.globals import MODEL_HYPERPARAMETERS_FILE_NAME, TRAIN_SET_METADATA_FILE_NAME
  from ludwig.types import TrainingSetMetadataDict
  from ludwig.utils.data_utils import chunk_dict, flatten_dict, save_json, to_json_dict
  from ludwig.utils.package_utils import LazyLoader
label_desc: Use image node_id 13 for calling the MlflowCallback obj's underlying member method code with example usage: obj.on_visualize_figure(fig) without return types