code: def fluctuate_ratio(self) -> float:
      return self.sd / self.runtime * 100
  
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 3 for calling the TestInput obj's underlying member method code with example usage: obj.fluctuate_ratio() and returns: unknown