/** Where the backend asks for the endpoints of the root. */
export declare const discover: (root: string) => string;
/** Where the bridge answers a discovery request with its endpoints. */
export declare const discoverReply: (root: string) => string;
/** Where the backend publishes the directives for one endpoint. */
export declare const directive: (root: string, endpointId: string) => string;
/**
 * What the bridge subscribes to: the discovery requests and the directives of every endpoint. Not <root>/#, which
 * also delivers what the bridge itself publishes and the backend's <endpointId>/alexaDirective_e.
 */
export declare const subscriptions: (root: string) => string[];
/** The endpointId of a directive topic, null for any other topic. */
export declare function directiveEndpoint(root: string, topic: string): string | null;
/** Where the answer to a directive goes. "alexaResponce" is how the backend and Alex2ESP spell it. */
export declare const response: (root: string, endpointId: string) => string;
/** Where the answer goes once a DeferredResponse was sent for the directive. */
export declare const deferred: (root: string, endpointId: string) => string;
/** How long Alex2MQTT waits for the answer to a directive before it tells Alexa that the endpoint did not answer. */
export declare const DIRECTIVE_BUDGET_MS = 7000;
/** Where every ChangeReport of the root goes: the backend adds the user's token and posts it to Alexa. */
export declare const changeReport: (root: string) => string;
/**
 * Where the events go that a device raises by itself, a DoorbellPress: the backend adds the user's token and posts
 * them to Alexa. It takes 30 events a minute from a root.
 */
export declare const event: (root: string) => string;
/** The backend drops an event that is longer, as JSON. */
export declare const EVENT_BYTES = 16000;