export type AuthenticatorInstance = {
    email: string;
    username?: string;
    password: string;
    isSubmitting: boolean;
    sendSignInMessage: boolean;
    screen?: 'mail' | 'token' | 'password' | 'password-reset';
    jwt?: string;
};
export declare function provideAuthenticatorInstance(authenticatorInstance: AuthenticatorInstance): void;
export declare function useAuthenticatorInstance(): AuthenticatorInstance;