code: def set_prediction_mode(self):
      self.inference_mode = True
      self.eval()
  
imports: import torch
  import torch.nn
  import torch.nn.functional
  from contextlib import ExitStack
  from .resnet import ResNetBackbone
  from .basic_blocks import select_activation_function
  from .basic_blocks import SeparableConv2d
label_desc: Use image node_id 3 for calling the DeepLabV3Plus obj's underlying member method code with example usage: obj.set_prediction_mode() without return types