code: def to_source(self, classname):
          
          if not self.check_type(self.jobject, "weka.classifiers.Sourcable"):
              return None
          return javabridge.call(self.jobject, "toSource", "(Ljava/lang/String;)Ljava/lang/String;", classname)
docs: Returns the model as Java source code if the classifier implements weka.classifiers.Sourcable.
  
          :param classname: the classname for the generated Java code
          :type classname: str
          :return: the model as source code string
          :rtype: str