/**
 * @hidden
 * Module to interact with the application entities specific part of the SDK.
 *
 * @internal
 * Limited to Microsoft-internal use
 *
 * @module
 */
import { SdkError } from '../public/interfaces';
/**
 * @hidden
 *
 * Information on an app entity
 *
 * @internal
 * Limited to Microsoft-internal use
 */
export interface AppEntity {
    /**
     * @hidden
     * ID of the application
     *
     * @internal
     * Limited to Microsoft-internal use
     */
    appId: string;
    /**
     * @hidden
     * URL for the application's icon
     *
     * @internal
     * Limited to Microsoft-internal use
     */
    appIconUrl: string;
    /**
     * @hidden
     * Content URL for the app entity
     *
     * @internal
     * Limited to Microsoft-internal use
     */
    contentUrl: string;
    /**
     * @hidden
     * The display name for the app entity
     *
     * @internal
     * Limited to Microsoft-internal use
     */
    displayName: string;
    /**
     * @hidden
     * Website URL for the app entity. It is meant to be opened by the user in a browser.
     *
     * @internal
     * Limited to Microsoft-internal use
     */
    websiteUrl: string;
}
/**
 * @hidden
 * Hide from docs
 * --------
 * Open the Tab Gallery and retrieve the app entity
 * @param threadId ID of the thread where the app entity will be created
 * @param categories A list of application categories that will be displayed in the opened tab gallery
 * @param subEntityId An object that will be made available to the application being configured
 *                      through the Context's subEntityId field.
 * @param callback Callback that will be triggered once the app entity information is available.
 *                 The callback takes two arguments: an SdkError in case something happened (i.e.
 *                 no permissions to execute the API) and the app entity configuration, if available
 *
 * @internal
 * Limited to Microsoft-internal use
 */
export declare function selectAppEntity(threadId: string, categories: string[], subEntityId: string, callback: (sdkError?: SdkError, appEntity?: AppEntity) => void): void;
/**
 * @hidden
 *
 * Checks if the appEntity capability is supported by the host
 * @returns boolean to represent whether the appEntity capability is supported
 *
 * @throws Error if {@linkcode app.initialize} has not successfully completed
 *
 * @internal
 * Limited to Microsoft-internal use
 */
export declare function isSupported(): boolean;