/**
 * Bump all changed packages to version {newVersion}
 * @param newVersion the version to bump can be a version number or bump type
 * @param since selects all the packages changed since the specified commit/branch/tag
 * @param forcePackages also bump the version in those packages
 * @param excludePackages filter out the specified packages/directory from the output
 */
export default function (newVersion: string, since: string, forcePackages?: string[], excludePackages?: string[]): Promise<void>;