import type { SvelteLetDirective, SvelteName } from "../ast/index.js";
import type * as ESTree from "estree";
import type { ScriptLetBlockParam, ScriptLetCallback } from "./script-let.js";
/** A class that collects pattern nodes for Let directives. */
export declare class LetDirectiveCollection {
    private readonly list;
    getLetParams(): ScriptLetBlockParam[];
    addPattern(pattern: ESTree.Pattern | SvelteName, directive: SvelteLetDirective, typing: string, ...callbacks: ScriptLetCallback<ESTree.Pattern>[]): ScriptLetCallback<ESTree.Pattern>[];
}
export declare class LetDirectiveCollections {
    private readonly stack;
    beginExtract(): void;
    getCollection(): LetDirectiveCollection;
    extract(): LetDirectiveCollection;
}