code: def typed_mutate(self, seed_input: NoneType):
      return None
  
imports: import copy
  import random
  import string
  import time
  from typing import Any, Dict, List, Set, Tuple
  from multipledispatch import dispatch
  from evalplus.gen.mut_gen import MutateGen
  from evalplus.gen.util import trusted_check_exec
label_desc: Use image node_id 17 for calling the TypedMutGen obj's underlying member method code with example usage: obj.typed_mutate(seed_input) and returns: None