set Pipeline.build to int

import shutil

import traceback

import warnings

from typing import Callable, NamedTuple, Optional, Any

from typing import Callable, NamedTuple, Optional, Any, Union

from astropy.time import Time, TimeDelta

from astropy.io import fits

        # get pipeline information from env vars

        self.pipeline_id: str = os.getenv("PIPELINE_ID", "-")

        self.build: str = os.getenv("BUILD", "-")

        self.build: int = int(os.getenv("BUILD", "0"))

        self.created: str = os.getenv("CREATED", "-")

        self.verbose: bool = bool(os.getenv("VERBOSE", ""))

        # self.error_trace = ErrorTrace(os.path.join(self.dir_output, "error_trace"))

        if dfs:

            self.dfs = DFS()

            self.dfs: Union[DFS | None] = DFS()

        else:

            self.dfs = None

            self.dfs: Union[DFS | None] = None

        if ccds:

            self.ccds = CCDS(ccds_root=ccds_root, ccds_cache=ccds_cache)

            self.ccds: Union[CCDS | None] = CCDS(

                ccds_root=ccds_root, ccds_cache=ccds_cache

            )

        else:

            self.ccds = None

            self.ccds: Union[CCDS | None] = None

        if filter_warnings:

            self.filter_warnings()

        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")

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

    def summarize(self):

        """Summarize this run."""