import { CredentialRequestOptionsJSON, CredentialCreationOptionsJSON, PublicKeyCredentialWithAssertionJSON, PublicKeyCredentialWithAttestationJSON } from "@github/webauthn-json";
/**
 * Manages WebAuthn credential operations as a singleton, ensuring only one active request at a time.
 * Uses an internal AbortController to cancel previous requests when a new one is initiated.
 */
declare class WebauthnManager {
    private static instance;
    private abortController;
    private constructor();
    /**
     * Gets the singleton instance of WebauthnManager.
     * Creates a new instance if one doesn't exist, otherwise returns the existing one.
     * @returns {WebauthnManager} The singleton instance
     */
    static getInstance(): WebauthnManager;
    /**
     * Creates a new abort signal, aborting any ongoing WebAuthn request.
     * @private
     * @returns {AbortSignal} The new abort signal
     */
    private createAbortSignal;
    /**
     * Retrieves a WebAuthn credential using the provided options.
     * Aborts any previous request before starting a new one.
     * @param {CredentialRequestOptionsJSON} options - The options for credential retrieval
     * @returns {Promise<PublicKeyCredentialWithAssertionJSON>} A promise resolving to the retrieved credential
     * @throws {DOMException} If the WebAuthn request fails (e.g., aborted, not allowed)
     */
    getWebauthnCredential(options: CredentialRequestOptionsJSON): Promise<PublicKeyCredentialWithAssertionJSON>;
    /**
     * Retrieves a WebAuthn credential with conditional UI mediation.
     * Aborts any previous request before starting a new one.
     * @param {CredentialRequestOptionsJSON} publicKey - The public key options for conditional retrieval
     * @returns {Promise<PublicKeyCredentialWithAssertionJSON>} A promise resolving to the retrieved credential
     * @throws {DOMException} If the WebAuthn request fails (e.g., aborted, not allowed)
     */
    getConditionalWebauthnCredential(publicKey: CredentialRequestOptionsJSON["publicKey"]): Promise<PublicKeyCredentialWithAssertionJSON>;
    /**
     * Creates a new WebAuthn credential using the provided options.
     * Aborts any previous request before starting a new one.
     * @param {CredentialCreationOptionsJSON} options - The options for credential creation
     * @returns {Promise<PublicKeyCredentialWithAttestationJSON>} A promise resolving to the created credential
     * @throws {DOMException} If the WebAuthn request fails (e.g., aborted, not allowed)
     */
    createWebauthnCredential(options: CredentialCreationOptionsJSON): Promise<PublicKeyCredentialWithAttestationJSON>;
}
export default WebauthnManager;