import { Ast } from 'thingtalk';
declare class SlotBag {
    schema: Ast.FunctionDef | null;
    store: Map<string, Ast.Value>;
    constructor(schema: Ast.FunctionDef | null);
    static merge(b1: SlotBag, b2: SlotBag): SlotBag | null;
    clone(): SlotBag;
    get size(): number;
    entries(): Iterable<[string, Ast.Value]>;
    get(key: string): Ast.Value | undefined;
    has(key: string): boolean;
    keys(): Iterable<string>;
    values(): Iterable<Ast.Value>;
    [Symbol.iterator](): IterableIterator<[string, Ast.Value]>;
    set(key: string, value: Ast.Value): void;
    clear(): void;
    delete(key: string): boolean;
}
export { SlotBag, };