import { CommentResponse, FollowResponse } from '../gen/models';
import { StreamFile } from '../types';
import { CommentParent } from '../types';
export declare const isFollowResponse: (data: object) => data is FollowResponse;
export declare const isCommentResponse: (entity: CommentParent) => entity is CommentResponse;
export declare const isImageFile: (file: StreamFile) => boolean;
export declare const isVideoFile: (file: StreamFile) => boolean;
