export function filterUserMentions(tag: any): true | undefined;
export function postFilterUserMentions(tag: any): void;
export function filterPostMentions(tag: any): true | undefined;
export function postFilterPostMentions(tag: any): void;
export function filterGroupMentions(tag: any): true | undefined;
export function postFilterGroupMentions(tag: any): void;
export function filterTagMentions(tag: any): true | undefined;
export function postFilterTagMentions(tag: any): void;