/** * @flow strict */ "use strict"; declare export function encodeHashComponent(str: string): string; declare export function decodeHashComponent(str: string): string; declare export function stream_id_to_slug( stream_id: number, maybe_get_stream_name: (id: number) => ?string, ): string; declare export function encode_stream_id( stream_id: number, maybe_get_stream_name: (id: number) => ?string, ): string; declare export function by_stream_url( stream_id: number, maybe_get_stream_name: (id: number) => ?string, ): string; declare export function by_stream_topic_url( stream_id: number, topic: string, maybe_get_stream_name: (id: number) => ?string, ): string;