code: def log_metrics(self, metrics, prefix=None, step=None):
      for logger in self.loggers:
          logger.log_metrics(metrics, prefix=prefix, step=step)
  
imports: from .wandb_logger import WandbLogger
label_desc: Use image node_id 2 for calling the Loggers obj's underlying member method code with example usage: obj.log_metrics(metrics, prefix, step) without return types