code: def set_eval_mode(self):
      self.model.eval()
  
file_path: DiCE/dice_ml/model_interfaces/pytorch_model.py
imports: import numpy
  import torch
  from dice_ml.constants import ModelTypes
  from dice_ml.model_interfaces.base_model import BaseModel
label_desc: Use image node_id 4 for calling the PyTorchModel obj's underlying member method code with example usage: obj.set_eval_mode() without return types