code: def base_object(self):
          
          jobj = javabridge.call(self.jobject, "getBaseObject", "()Ljava/io/Serializable;")
          if OptionHandler.check_type(jobj, "weka.core.OptionHandler"):
              return OptionHandler(jobj)
          else:
              return JavaObject(jobj)
docs: Returns the base object to apply the setups to.
  
          :return: the base object
          :rtype: JavaObject or OptionHandler