import { HostAppAPI } from '../../types';
export type ConnectToHostAppResult = {
    api: HostAppAPI;
    initialState?: string;
};
/**
 * Connects to the Fusion host and returns the API along with any initial state
 * provided by the host.
 *
 * @example
 * ```typescript
 * import { connectToHostApp } from '@cognite/app-sdk';
 *
 * const { api, initialState } = await connectToHostApp();
 * api.getProject().then(project => {
 *   console.log(project);
 * });
 * ```
 *
 * @privateRemarks
 * This function is used to connect to the Fusion host and return the API.
 * It's meant to be used in the custom app to get the API to interact with the
 * Fusion host.
 *
 * It will generate a unique handshake ID and send a ready signal to the Fusion
 * host. It will then wait for the bridge port to be exposed by the Fusion host
 * and return the API.
 *
 * @returns a promise that resolves to the API and optional initial state.
 */
export declare const connectToHostApp: (meta?: {
    applicationName?: string;
}) => Promise<ConnectToHostAppResult>;
/**
 * Resets the module level variables to their initial values. It's meant to
 * be used in tests.
 *
 * DO NOT USE IN PRODUCTION CODE!
 *
 * @internal
 */
export declare const test_resetConnectionForTesting: () => void;