code: def typed_gen(self, _):
      @use_ingredient(0.5)
      def _impl(*_):
          return "".join(
              random.choice(string.ascii_letters)
              for _ in range(random.randint(0, 10))
          )
  
      return _impl(self, _)
  
imports: import copy
  import math
  import random
  import string
  from typing import Any, Dict, List, Optional, Set, Tuple
  from multipledispatch import dispatch
  from rich.progress import track
  from evalplus._experimental.evaluate_runtime import MAX_WARMUP_LIMIT, RUN_REPEAT, execute_for_runtime
  from evalplus.gen.mut_gen import MutateGen
label_desc: Use image node_id 8 for calling the TypedMutEffGen obj's underlying member method code with example usage: obj.typed_gen(_) and returns: _impl, str