code: def strip_leading_white_space(line):
      while len(line) > 0 and (line[0] == " " or line[0] == "\t"):
          line = line[1:]
      return line
  
imports: from __future__ import absolute_import, print_function, division
  from six.moves import xrange
label_desc: Use image node_id 3 for calling a global function with example usage: strip_leading_white_space(line) and returns: line