code: def cast_tuple(val, depth=1):
      if isinstance(val, list):
          val = tuple(val)
      return val if isinstance(val, tuple) else (val,) * depth
  
imports: import torch
  import torch.nn.functional
  from einops import rearrange
  from torch import nn
label_desc: Use image node_id 3 for calling a global function with example usage: cast_tuple(val, depth) and returns: unknown