code: def argument_str(
      self, *, method: bool = False, symint: bool = True
  ) -> str:
      type_str = (
          argument_type_str(self.type, symint=symint)
          .replace("const ", "")
          .replace(" &", "")
      )
  
      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 in ["Tensor", "Number"]
          and not method
      ):
          name = "input"
  
      # add default
      if self.default is not None:
          default = {
              "nullptr": "None",
              "c10::nullopt": "None",
              "{}": "None",
          }.get(self.default, self.default)
          return f"{type_str} {name}={default}"
      else:
          return f"{type_str} {name}"
  
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 1 for calling the PythonArgument obj's underlying member method code with example usage: obj.argument_str() and returns: type_str, str, name, str, default, type_str, str, name