code: def batch_norm(self, data, mean, var, training):
      return torch.nn.functional.batch_norm(
          data, mean, var, training=training
      )
  
imports: import torch
label_desc: Use image node_id 9 for calling the TorchTensorEngine obj's underlying member method code with example usage: obj.batch_norm(data, mean, var, training) and returns: torch