Method get_headers

src/werkzeug/exceptions.py:549–557

(
        self,
        environ: WSGIEnvironment | None = None,
        scope: dict[str, t.Any] | None = None,
    )

        self.units = units

    def get_headers(
        self,
        environ: WSGIEnvironment | None = None,
        scope: dict[str, t.Any] | None = None,
    ) -> list[tuple[str, str]]:
        headers = super().get_headers(environ, scope)
        if self.length is not None:
            headers.append(("Content-Range", f"{self.units} */{self.length}"))
        return headers


class ExpectationFailed(HTTPException):