code: def get_function_hook(self, fullname: str):
      return function_hook
  
imports: import itertools
  from typing import Dict, List
  from mypy.checker import TypeChecker
  from mypy.errorcodes import ErrorCode
  from mypy.errors import Errors
  from mypy.nodes import CallExpr, Decorator, Expression, FuncDef, MypyFile, NameExpr
  from mypy.options import Options
  from mypy.plugin import CheckerPluginInterface, FunctionContext, Plugin
  from mypy.subtypes import is_subtype
  from mypy.types import CallableType, Instance, Type, TypeVarType
label_desc: Use image node_id 2 for calling the ThincPlugin obj's underlying member method code with example usage: obj.get_function_hook(fullname) and returns: function_hook