code: def apply_half(t):
      if t.dtype is torch.float32:
          return t.to(dtype=torch.half)
      return t
  
imports: import ast
  import logging
  import math
  import os
  import sys
  import editdistance
  import numpy
  import torch
  from fairseq import checkpoint_utils, options, progress_bar, tasks, utils
  from fairseq.data.data_utils import post_process
  from fairseq.logging.meters import StopwatchMeter, TimeMeter
label_desc: Use image node_id 7 for calling a global function with example usage: apply_half(t) and returns: t, t