code: def create_forward_tuple_input():
      # Use to test case where forward is passed a single tuple for input.
      # This is different because eager always wraps pre-hook return arguments
      # in a tuple when the returned pre-hook result isn't a tuple
      # (to allow the result to be passed to another pre-hook if needed).
      # The eager behavior doesn't wrap the single tuple input pre-hook return in a
      # tuple as it should. To get consistent behavior between single tuple inputs and
      # the rest of the possible forward inputs, pre-hooks need to
      # wrap single tuple inputs returns in another tuple. This is
      # enforced by the schema checker.
      m = ModuleForwardTupleInput("outer_mod_name", "inner_mod_name")
  
      def pre_hook_outermod(
          self, input: Tuple[Tuple[int]]
      ) -> Tuple[Tuple[int]]:
          # 'return (11,)' doesn't work with eager, inner tuple lost
          return ((11,),)
  
      def pre_hook_innermod(
          self, input: Tuple[Tuple[int]]
      ) -> Tuple[Tuple[int]]:
          # 'return (22,)' doesn't work with eager, inner tuple lost
          return ((22,),)
  
      def forward_hook_outermod(
          self, input: Tuple[Tuple[int]], output: int
      ):
          return (11,)
  
      def forward_hook_innermod(
          self, input: Tuple[Tuple[int]], output: Tuple[int]
      ):
          return 22
  
      m.register_forward_pre_hook(pre_hook_outermod)
      m.submodule.register_forward_pre_hook(pre_hook_innermod)
      m.register_forward_hook(forward_hook_outermod)
      m.submodule.register_forward_hook(forward_hook_innermod)
  
      return m
  
imports: import torch
  from typing import List, Tuple
label_desc: Use image node_id 16 for calling a global function with example usage: create_forward_tuple_input() and returns: m, int, int, int, int