import { AuthSession, AuthTokens, FetchAuthSessionOptions, LibraryOptions, ResourcesConfig } from '@aws-amplify/core';
import { AmplifyOutputsUnknown, LegacyConfig } from '@aws-amplify/core/internals/utils';
/**
 * The `Amplify` singleton facade provides the v6-compatible, global-state
 * `configure()` / `getConfig()` API. It builds a branded, frozen
 * {@link AmplifyContext}, publishes it as the global context (so category APIs
 * can be called without an explicit context argument), and dispatches the
 * `configure` Hub event that side effects such as auth's OAuth listener depend
 * on.
 *
 * @example
 * ```ts
 * import { Amplify } from 'aws-amplify';
 * import config from './amplifyconfiguration.json';
 *
 * Amplify.configure(config);
 * ```
 */
export declare const Amplify: {
    /**
     * Configures Amplify with the {@link resourceConfig} and {@link libraryOptions},
     * publishing the resulting branded context as the global {@link AmplifyContext}.
     *
     * If `libraryOptions` is omitted on a reconfigure, the previously configured
     * non-Auth `libraryOptions` are preserved (mirroring the previous singleton
     * merge behavior); when provided they replace the previous ones. When
     * `resourceConfig.Auth` is present and the caller does not supply
     * `libraryOptions.Auth`, the default Cognito token/credentials providers are
     * wired using cookie storage (`ssr: true`) or `localStorage` (default), and
     * the singleton token provider's auth config is re-synced on every call so a
     * reconfigure with a new `userPoolId` retargets token refresh.
     *
     * @param resourceConfig The {@link ResourcesConfig} object that is typically imported from the
     * `amplifyconfiguration.json` / `amplify_outputs.json` file. It can also be an object literal
     * created inline when calling `Amplify.configure`.
     * @param libraryOptions The {@link LibraryOptions} additional options for the library.
     *
     * @example
     * import config from './amplifyconfiguration.json';
     *
     * Amplify.configure(config);
     */
    configure(resourceConfig: ResourcesConfig | LegacyConfig | AmplifyOutputsUnknown, libraryOptions?: LibraryOptions): void;
    /**
     * Returns the {@link ResourcesConfig} object passed in as the `resourceConfig` parameter when
     * calling `Amplify.configure`.
     *
     * If `configure()` has not been called yet, this warns and returns an empty
     * config object (`{}`) rather than throwing, preserving the historical
     * pre-context singleton behavior that callers (and release-gating e2e tests)
     * depend on.
     *
     * @returns An {@link ResourcesConfig} object.
     */
    getConfig(): ResourcesConfig;
    /**
     * Fetches the current auth session from the global context.
     *
     * @throws If `configure()` has not been called yet.
     */
    fetchAuthSession(options?: FetchAuthSessionOptions): Promise<AuthSession>;
    /**
     * Clears cached credentials in the global context.
     *
     * @throws If `configure()` has not been called yet.
     */
    clearCredentials(): Promise<void>;
    /**
     * Fetches auth tokens from the global context.
     *
     * @throws If `configure()` has not been called yet.
     */
    getTokens(options: FetchAuthSessionOptions): Promise<AuthTokens | undefined>;
};