def getAnnotationKeyList(self): raise exp.implimentationError('Class method not initialized yet.')
def getValue(self, annotation_key=None): raise exp.implimentationError('Class method not initialized yet.')
def get_null_vector(self): raise exp.implimentationError('Class method not initialized yet.')
def vectorize(self): raise exp.implimentationError('Class method not initialized yet.')
def set_reader(self): raise exp.implimentationError('Class method not initialized yet.')
def get_previous_sentence(self): raise exp.implimentationError('Class method not initialized yet.')
def get_key_elements(self, key=None): raise exp.implimentationError('Class method not initialized yet.')