import type * as vscode from "vscode";
export declare class Memento implements vscode.Memento {
    protected _storage: any;
    keys(): readonly string[];
    get<T>(key: string): T | undefined;
    get<T>(key: string, defaultValue: T): T;
    update(key: string, value: any): Thenable<void>;
    setKeysForSync(): void;
}
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