code: def _ntuple(n):
      def parse(x):
          if isinstance(x, collections.abc.Iterable):
              return x
          return tuple(repeat(x, n))
  
      return parse
  
imports: from collections import OrderedDict
  from itertools import repeat
  import collections.abc
  import math
  import torch
  import torch.nn.functional
  from torch import nn
  from fairscale.nn.checkpoint.checkpoint_activations import checkpoint_wrapper
  from lavis.models.eva_vit import convert_weights_to_fp16
  from lavis.common.dist_utils import download_cached_file
label_desc: Use image node_id 1 for calling a global function with example usage: _ntuple(n) and returns: parse, tuple, x