code: def decode_iso_8859_15(b):
      return b.decode("iso-8859-15")
  
imports: from unittest import TestCase
  from simplejson.compat import StringIO, long_type, b, binary_type, text_type, PY3
  import simplejson
label_desc: Use image node_id 2 for calling a global function with example usage: decode_iso_8859_15(b) and returns: b