code: def argument_str_pyi(
      self, *, method: bool = False, deprecated: bool = False
  ) -> str:
      type_str = argument_type_str_pyi(self.type)
  
      name = self.name
      # s/self/input/ outside method bindings
      # [old codegen] TODO: remove this? doesn't rename in codegen, it's just
      # for the parse string
      if (
          name == "self"
          and type_str == "Tensor"
          and not method
          and not deprecated
      ):
          name = "input"
  
      if name == "from":  # from is a Python keyword...
          name += "_"
  
      # pyi merges the _out and functional variants into the same signature, with an optional out arg
      if name == "out" and type_str == "Tensor" and not deprecated:
          type_str = "Optional[" + type_str + "]"
  
      # pyi deprecated signatures don't get defaults for their out arg
      treat_as_no_default = (
          deprecated
          and isinstance(self, PythonOutArgument)
          and self.default == "None"
      )
  
      # add default
      if self.default is not None and not treat_as_no_default:
          if (
              isinstance(self.type, ListType)
              and self.type.elem == BaseType(BaseTy.int)
              and self.default.startswith("{")
              and self.default.endswith("}")
          ):
              default = "(" + self.default[1:-1] + ")"
          else:
              default = {
                  "nullptr": "None",
                  "c10::nullopt": "None",
                  "{}": "None",
                  "MemoryFormat::Contiguous": "contiguous_format",
                  "QScheme::PER_TENSOR_AFFINE": "per_tensor_affine",
              }.get(self.default, self.default)
          return f"{name}: {type_str} = {default}"
      else:
          return f"{name}: {type_str}"
  
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 2 for calling the PythonArgument obj's underlying member method code with example usage: obj.argument_str_pyi() and returns: name, str, type_str, str, default, name, str, type_str