class_docstr: `AlgorithmBase` is the base class of the `parl.Algorithm` in different
  frameworks.
  
  This base class mainly do the following things:
      1. Implements APIs to set or get weights of all `ModelBase` in self.__dict__;
      2. Defines common APIs that `parl.Algorithm` should implement in different frameworks.
docstr: define predicting process, such as using policy model to predict actions when given observations.
          
code: def predict(self, *args, **kwargs):
      """define predicting process, such as using policy model to predict actions when given observations."""
      raise NotImplementedError
  
file_path: PARL/parl/core/algorithm_base.py
imports: from parl.core.model_base import ModelBase
label_desc: Use image node_id 5 for calling the AlgorithmBase obj's underlying member method code with example usage: obj.predict() without return types