code: def get_label_config(self):
      return ["Ref($close, -2)/Ref($close, -1) - 1"], ["LABEL0"]
  
imports: from ...data.dataset.handler import DataHandlerLP
  from ...data.dataset.processor import Processor
  from ...utils import get_callable_kwargs
  from ...data.dataset import processor
  from inspect import getfullargspec
label_desc: Use image node_id 3 for calling the Alpha158 obj's underlying member method code with example usage: obj.get_label_config() and returns: list,  list