* @param {string} ref * @returns {Promise<string | undefined>}

* @param {import('../types').Extension} extension * @param {import('../types').PublishContext} publishContext

* * @param {Readonly<import('./types').Extensions>} original * @param {Readonly<import('./types').Extensions>} current * @returns {string[]}

* * @param {Readonly<import('stream').Readable>} stream * @returns {Promise<Buffer>}

* Checks whether the provided `version` is a prerelease or not * @param {Readonly<import('../types').IRawGalleryExtensionProperty[]>} version * @ret

* * @param {string} extensionFile * @returns {Promise<any|undefined>}

* * @param {string} packagePath * @param {(name: string) => boolean} filter * @param {boolean} unique * @returns {Promise<Map<string, Buffer>>}