export type { GetTokensResponse, OneTapAuthorizationResult, OneTapConfigureParams, OneTapResponse, OneTapResponseType, OneTapSuccessData, OneTapUser, } from './specs/nitro-google-signin.nitro';
/** String literals for {@link OneTapResponseType}. */
export declare const OneTapResponseTypes: {
    readonly success: "success";
    readonly noSavedCredentialFound: "noSavedCredentialFound";
    readonly cancelled: "cancelled";
};
/** @internal Placeholder for API parity — sign-in methods take no arguments. */
export type OneTapSignInParams = Record<string, never>;
/** @internal Placeholder for API parity — sign-in methods take no arguments. */
export type OneTapCreateAccountParams = Record<string, never>;
/** @internal Placeholder for API parity — sign-in methods take no arguments. */
export type OneTapExplicitSignInParams = Record<string, never>;
/** Error code strings thrown by native sign-in and authorization flows. */
export declare const statusCodes: {
    /** Credential Manager / Google Sign-In request failed (not user cancel). */
    readonly ONE_TAP_START_FAILED: "ONE_TAP_START_FAILED";
    /** Android — Play Services missing or outdated. */
    readonly PLAY_SERVICES_NOT_AVAILABLE: "PLAY_SERVICES_NOT_AVAILABLE";
    /** No Activity / view controller, or sign-in called before `configure()`. */
    readonly IN_PROGRESS: "IN_PROGRESS";
    /** User must sign in first. */
    readonly SIGN_IN_REQUIRED: "SIGN_IN_REQUIRED";
    /** User cancelled an authorization or sign-in flow. */
    readonly SIGN_IN_CANCELLED: "SIGN_IN_CANCELLED";
    /**
     * Android OAuth misconfiguration (wrong/missing SHA-1, package name, or
     * Android client ID used as `webClientId`). Thrown when Credential Manager /
     * AuthorizationClient surfaces a developer error — not for silent `cancelled`
     * responses (see troubleshooting for production `cancelled` after account pick).
     */
    readonly DEVELOPER_ERROR: "DEVELOPER_ERROR";
};
export type StatusCode = (typeof statusCodes)[keyof typeof statusCodes];
/** Error thrown by native sign-in, Play Services checks, and authorization flows. */
export declare class GoogleSignInError extends Error {
    /** One of {@link statusCodes}. */
    code: StatusCode;
    /** Optional metadata (e.g. Play Services status on Android). */
    userInfo?: Record<string, string>;
    constructor(code: StatusCode, message: string, userInfo?: Record<string, string>);
}
/**
 * Type guard for errors with a `code` and `message` (including native bridged errors).
 *
 * @example
 * ```ts
 * try {
 *   await GoogleOneTapSignIn.checkPlayServices()
 * } catch (e) {
 *   if (isErrorWithCode(e) && e.code === statusCodes.PLAY_SERVICES_NOT_AVAILABLE) {
 *     // prompt user to update Play Services
 *   }
 * }
 * ```
 */
export declare function isErrorWithCode(error: unknown): error is Pick<GoogleSignInError, 'code' | 'message' | 'userInfo'>;
/**
 * Narrows a {@link OneTapResponse} to success with non-null `data`.
 *
 * @example
 * ```ts
 * if (isSuccessResponse(response)) {
 *   const { user, idToken, serverAuthCode } = response.data
 * }
 * ```
 */
export declare function isSuccessResponse(response: import('./specs/nitro-google-signin.nitro').OneTapResponse): response is import('./specs/nitro-google-signin.nitro').OneTapResponse & {
    type: 'success';
    data: import('./specs/nitro-google-signin.nitro').OneTapSuccessData;
};
/** `true` when the user has no saved Google credential for this app. */
export declare function isNoSavedCredentialFoundResponse(response: import('./specs/nitro-google-signin.nitro').OneTapResponse): boolean;
/** `true` when the user dismissed the sign-in UI (not thrown — check the response). */
export declare function isCancelledResponse(response: import('./specs/nitro-google-signin.nitro').OneTapResponse): boolean;
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