code: def run(self):
      if self._run is None:
          if self.wandb.run is not None:
              logger.info(
                  "There is a wandb run already in progress "
                  "and newly created instances of `WandbLogger` will reuse"
                  " this run. If this is not desired, call `wandb.finish()`"
                  "before instantiating `WandbLogger`."
              )
              self._run = self.wandb.run
          else:
              self._run = self.wandb.init(**self._wandb_init)
      return self._run
  
file_path: PaddleOCR/ppocr/utils/loggers/wandb_logger.py
imports: import os
  from .base_logger import BaseLogger
label_desc: Use image node_id 2 for calling the WandbLogger obj's underlying member method code with example usage: obj.run() and returns: self