import type { CredentialsHandler } from "./types.ts";
export declare class InMemoryCredentialsHandler implements CredentialsHandler {
    private static userCredentials;
    private static tryMutate;
    static credentialIds(userId: string): ArrayBufferLike[];
    onCreatedCredentials(userId: string, credential: PublicKeyCredential): Promise<void>;
    publicKeyCreateOptions(challenge: Uint8Array, user: PublicKeyCredentialUserEntity): Promise<PublicKeyCredentialCreationOptions>;
    publicKeyRequestOptions(userId: string, challenge: Uint8Array): Promise<CredentialRequestOptions["publicKey"]>;
}