use iso 8601 format time stamp

    2022-11-06, Bo Zhang, deleted CsstMbiDataManager

    2022-11-20, Bo Zhang, added DFS APIs

"""

import _io

import datetime

import glob

import os

import re

from typing import Union

import numpy as np

from astropy.io import fits

from astropy import time

from astropy.io import fits

from astropy.table import Table

from csst_dfs_api.common.catalog import CatalogApi

from csst_dfs_api.facility.level0 import Level0DataApi

from csst_dfs_api.facility.level0prc import Level0PrcApi

from csst_dfs_api.facility.level1 import Level1DataApi

from csst_dfs_api.facility.level1prc import Level1PrcApi

from csst_dfs_api.mbi.level2 import Level2DataApi as MbiLevel2DataApi

from csst_dfs_api.sls.level2spectra import Level2SpectraApi as SlsLevel2DataApi

from csst_dfs_api.common.catalog import CatalogApi

from .logger import get_logger

from .params import CSST_PARAMS as CP

    def write_stamp(self):

        if self.stamps is not None and not self.stamps == "":

            with open(self.stamps, "a+") as f:

                f.write(f"{time.Time.now().isot}\n")

                f.write(f"{time.Time.now().isot.replace('.', ',')}+0800\n")

    @staticmethod

    def now():

        return datetime.datetime.now().strftime('%Y-%m-%d %H:%M:%S')

    # DFS APIs

    @property