code: def set_losses_size_stat(self, losses):
      if self.collect_stats:
          if not torch.is_tensor(losses) or losses.ndim == 0:
              self.losses_size = 1
          else:
              self.losses_size = len(losses)
  
imports: import torch
  from ..utils import common_functions
  from ..utils.module_with_records import ModuleWithRecords
label_desc: Use image node_id 20 for calling the BaseReducer obj's underlying member method code with example usage: obj.set_losses_size_stat(losses) without return types