code: def compute_ufunc_cpu(g: NativeFunctionsGroup) -> str:
      stub_sig = StubSignature(g)
      sig = StructuredImplSignature(
          g, ufunc.kernel_name(g, DispatchKey.CPU)
      )
  
      return f"""
  {stub_sig.type_defn()};
  {stub_sig.dispatch_decl()};
  {stub_sig.dispatch_defn()};
  
  {sig.defn()} {{
    {stub_sig.call(sig.arguments())};
  }}
  """
  
imports: from dataclasses import dataclass
  from typing import Dict, List, Optional, Sequence, Tuple, Union
  import torchgen.api.ufunc
  from torchgen.api.translate import translate
  from torchgen.api.types import BaseCType, Binding, CType, Expr, NamedCType, opmath_t, scalar_t, StructuredImplSignature, VectorizedCType
  from torchgen.api.ufunc import UfunctorBindings
  from torchgen.context import with_native_function
  from torchgen.model import Argument, BaseTy, BaseType, DispatchKey, NativeFunctionsGroup, ScalarType, UfuncKey
  from torchgen.utils import OrderedSet
label_desc: Use image node_id 5 for calling a global function with example usage: compute_ufunc_cpu(g) and returns: str, stub_sig, str, stub_sig, str, stub_sig, str, sig, str, stub_sig, str