code: def get_text_box(text, fs):
      """Approximation of text bounds"""
      return (fs, text_len(len(text), fs))
  
imports: from __future__ import division
  import re
  from decimal import Decimal
  from math import ceil, cos, floor, log10, pi, sin
label_desc: Use image node_id 15 for calling a global function with example usage: get_text_box(text, fs) and returns: fs,  text_len