code: def numeric_string(maxprec, maxexp):
      if randrange(100) > 95:
          return "".join((sign(), nan()))
      else:
          return "".join((sign(), numeric_value(maxprec, maxexp)))
  
imports: from random import randrange, sample
  from fractions import Fraction
  from randfloat import un_randfloat, bin_randfloat, tern_randfloat
label_desc: Use image node_id 11 for calling a global function with example usage: numeric_string(maxprec, maxexp) and returns: str, str