code: def output_idx(self) -> int:
      return len(self.input_args) + len(self.input_kwargs)
  
imports: from dataclasses import dataclass
  from typing import Dict, List, Optional, Sequence, Set, Tuple, Union
  from torchgen.api import cpp
  from torchgen.api.types import Binding, CppSignature, CppSignatureGroup
  from torchgen.gen import pythonify_default
  from torchgen.model import Argument, BaseTy, BaseType, FunctionSchema, ListType, NativeFunction, OptionalType, Return, Type, Variant
label_desc: Use image node_id 4 for calling the PythonSignature obj's underlying member method code with example usage: obj.output_idx() and returns: unknown