import type { Attachment } from 'svelte/attachments';
export declare function createIntersectionAttachment(trigger: (entry: IntersectionObserverEntry) => boolean, options?: IntersectionObserverInit): {
    <T extends Element>(callback: Attachment<T>): Attachment<T>;
    <T extends Element>(node: T, callback: Attachment<T>): () => void;
};
export declare function enterView<T extends Element>(callback: Attachment<T>): Attachment<T>;
export declare function enterView<T extends Element>(node: T, callback: Attachment<T>): () => void;
export declare function leaveView<T extends Element>(callback: Attachment<T>): Attachment<T>;
export declare function leaveView<T extends Element>(node: T, callback: Attachment<T>): () => void;