class_docstr: Log objects to Weights and Biases.
code: def flush(self):
      pass
  
imports: import datetime
  import json
  import numbers
  import os
  import pathlib
  import re
  from typing import Optional
  import parlai.utils.logging
  from parlai.core.metrics import Metric, dict_report, get_metric_display_data
  from parlai.core.opt import Opt
  from parlai.core.params import ParlaiParser
  from parlai.utils.io import PathManager
label_desc: Use image node_id 7 for calling the WandbLogger obj's underlying member method code with example usage: obj.flush() without return types