code: def reverse_text_len(width, fs):
      """Approximation of text length"""
      return int(width / (0.6 * 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 14 for calling a global function with example usage: reverse_text_len(width, fs) and returns: int