/**
 * Lifetime-tree node for the debug/agent surface. A serialized snapshot
 * of the live scope tree — the signal devtools surface and MCP tools
 * read this shape to render scope lifecycle.
 */
export interface LifetimeNode {
    scopeId: string;
    kind: 'root' | 'show' | 'each' | 'branch' | 'scope' | 'child' | 'portal' | 'foreign';
    active: boolean;
    children: LifetimeNode[];
}
/**
 * Enter/leave/cross transition hooks shared by the animation/transition
 * helpers (`@llui/transitions`) and the structural primitives that
 * accept them. Runtime-agnostic — operates on raw DOM `Node`s.
 */
export interface TransitionOptions {
    enter?: (nodes: Node[]) => void | Promise<void>;
    leave?: (nodes: Node[]) => void | Promise<void>;
    onTransition?: (ctx: {
        entering: Node[];
        leaving: Node[];
        parent: Node;
    }) => void | Promise<void>;
}
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