use sys.argv[1] for Pipeline initialization

    2025-12-27, Bo Zhang, rewrite Pipeline class

"""

import sys

import json

import subprocess

import os

    {'a': 1}

    """

    def __init__(self, msg: str = "", **env_vars: Any):

    def __init__(self, **env_vars: Any):

        # record start time

        self.t_start = Time.now()

        # set message

        self.msg = msg

        self.msg = sys.argv[1]

        self.msg_dict = self.json2dict(self.msg)

        # set environment variables