export declare function removePrefixIfNeeded(prependedPublicKey: Uint8Array): Uint8Array;
export declare function removePrefixIfNeeded(sessionID: string): string;
export declare class Deferred<T = void> {
    promise: Promise<T>;
    resolve: (value: T | PromiseLike<T>) => void;
    reject: (reason?: T | PromiseLike<T>) => void;
    constructor();
}
export declare function checkStorage(storage: unknown): void;
export declare function checkNetwork(network: unknown): void;
export declare function getPlaceholderDisplayName(sessionID: string): string;