def __init__(self, name='<STR_LIT>', defaultValue=irNull):
self.valueType = None<EOL>self.defaultValue = defaultValue<EOL>
__init__ - Create an IRPickleField

@param name <str> - Field name

@param defaultValue - The default value of this field

Because even with the same format, python2 and python3 can output different pickle strings for the same object,
  as well as different host configurations may lead to different output, this field type is not indexable.