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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def add_jobflow_steps(self, jobflow_id, steps):
 """ Adds steps to a jobflow :type jobflow_id: str :param jobflow_id: The job flow id :type steps: list(boto.emr.Step) :param steps: A list of steps to add to the job """

        if type(steps) != types.ListType:
            steps = [steps]
        params = {}
        params['JobFlowId'] = jobflow_id

        # Step args
        step_args = [self._build_step_args(step) for step in steps]
        params.update(self._build_step_list(step_args))

        return self.get_object(
            'AddJobFlowSteps', params, RunJobFlowResponse, verb='POST')