code: def log_metrics(self, metrics, prefix=None, step=None):
      if not prefix:
          prefix = ""
      updated_metrics = {
          prefix.lower() + "/" + k: v for k, v in metrics.items()
      }
  
      self.run.log(updated_metrics, step=step)
  
file_path: PaddleOCR/ppocr/utils/loggers/wandb_logger.py
imports: import os
  from .base_logger import BaseLogger
label_desc: Use image node_id 3 for calling the WandbLogger obj's underlying member method code with example usage: obj.log_metrics(metrics, prefix, step) without return types