code: def pc(num, den):
      return (num / float(den + 1e-100)) * 100
  
file_path: vowpal_wabbit/demo/dependencyparsing/evaluate.py
imports: import os
  import sys
  from collections import defaultdict
label_desc: Use image node_id 1 for calling a global function with example usage: pc(num, den) and returns: unknown