add Pipeline.summary()

import warnings

from typing import Callable, NamedTuple, Optional, Any

from astropy.time import Time, TimeDelta

from astropy.io import fits

from .utils import retry

from .ccds import CCDS

from .dfs import DFS

from .file import File

from .io import reformat_header

from .logger import get_logger

from .status import CsstStatus, CsstResult

        print(f"PIPELINE_ID={self.pipeline_id}")

        print(f"BUILD={self.build}")

        print(f"CREATED={self.created}")

        print(f"VERBOSE={self.verbose}")

    def summary(self) -> fits.Header:

        """Summarize pipeline info into a `astropy.io.fits.Header`."""

        h = fits.Header()

        h.set("PIPELINE_ID", self.pipeline_id, comment="pipeline ID")

        h.set("BUILD", self.build, comment="pipeline build number")

        h.set("CREATED", self.pipeline_id, comment="pipeline build time")

        return reformat_header(h, strip=False, comment="Pipeline summary")

    def clean_output(self):

        """Clean output directory."""