code: def left_strip(el, prefix):
      """
      Strips prefix at the left of el
      """
      if el.startswith(prefix):
          return el[len(prefix) :]
      return el
  
imports: import locale
  import logging
  import six
  import sys
  import codecs
  import library.python.func
label_desc: Use image node_id 1 for calling a global function with example usage: left_strip(el, prefix) and returns: el, el