code: def isGeneratorType(typ: Type) -> bool:
      if isinstance(typ, BaseType):
          return typ.name == BaseTy.Generator
      elif isinstance(typ, (OptionalType)):
          return isGeneratorType(typ.elem)
      return False
  
imports: from typing import Any, Dict, List, Optional, Tuple, Union
  from torchgen.api.types import BaseCppType, BaseCType, boolT, CType, deviceT, doubleT, generatorT, layoutT, ListCType, longT, memoryFormatT, NamedCType, OptionalCType, scalarT, scalarTypeT, stringT, SymIntT, VectorCType
  from torchgen.model import Argument, BaseTy, BaseType, FunctionSchema, ListType, OperatorName, OptionalType, Return, TensorOptionsArguments, Type
label_desc: Use image node_id 7 for calling a global function with example usage: isGeneratorType(typ) and returns: False, unknown, isGeneratorType