code: def validate_whiskers(s):
      try:
          return _listify_validator(validate_float, n=2)(s)
      except (TypeError, ValueError):
          try:
              return float(s)
          except ValueError as e:
              raise ValueError(
                  "Not a valid whisker value [float, " "(float, float)]"
              ) from e
  
imports: import ast
  from functools import lru_cache, reduce
  from numbers import Real
  import operator
  import os
  import re
  import numpy
  from matplotlib import _api, cbook
  from matplotlib.cbook import ls_mapper
  from matplotlib.colors import Colormap, is_color_like
  from matplotlib._fontconfig_pattern import parse_fontconfig_pattern
  from matplotlib._enums import JoinStyle, CapStyle
  from cycler import Cycler, cycler
label_desc: Use image node_id 25 for calling a global function with example usage: validate_whiskers(s) and returns: _listify_validator, float