code: def zero_losses(self):
      return {
          loss_name: self.zero_loss()
          for loss_name in self.sub_loss_names()
      }
  
file_path: pytorch-metric-learning/src/pytorch_metric_learning/losses/base_metric_loss_function.py
imports: import inspect
  from ..utils import common_functions
  from ..utils.module_with_records_and_reducer import ModuleWithRecordsReducerAndDistance
  from .mixins import EmbeddingRegularizerMixin
label_desc: Use image node_id 4 for calling the BaseMetricLossFunction obj's underlying member method code with example usage: obj.zero_losses() and returns: unknown