/**
 * Video URL regex pattern for input rule.
 * Matches URLs ending with common video file extensions.
 *
 * Supports:
 * - .mp4, .mov, .avi, .wmv, .flv, .webm, .mkv, .m4v
 * - URLs with query parameters (e.g., ?t=10)
 * - Trailing invisible characters (common when pasting from rich text)
 *
 * @internal Exported for testing only
 */
export declare const VIDEO_URL_INPUT_REGEX: RegExp;
/**
 * Input rule: pasting/typing a video URL creates a video block.
 * Triggered when user types/pastes a URL ending with a video extension.
 */
export declare const videoInputRule: import('@milkdown/utils').$InputRule;