code: def assert_sizes_element(self, losses, loss_indices):
      assert torch.is_tensor(losses)
      assert torch.is_tensor(loss_indices)
      assert len(losses) == len(loss_indices)
  
imports: import torch
  from ..utils import common_functions
  from ..utils.module_with_records import ModuleWithRecords
label_desc: Use image node_id 15 for calling the BaseReducer obj's underlying member method code with example usage: obj.assert_sizes_element(losses, loss_indices) without return types