/**
 * System-level event names emitted on the realtime SSE stream
 * (`GET /v2/apps/{appId}/realtime`).
 *
 * The stream also emits `event: message` frames whose `data:` is forwarded
 * opaquely from the upstream source — typically a JSON string, but the API
 * does not enforce a schema. Consumers should `JSON.parse` and discriminate
 * internally per the feature they're listening to.
 *
 * Connection limits: at most 5 simultaneous connections per user (plus a
 * per-application cap) — exceeding it returns `REALTIME_MAX_CONNECTIONS`.
 * Each connection has a 10-minute TTL with one transparent internal
 * reconnection; clients must reconnect when the TTL expires.
 *
 * @see https://docs.squarecloud.app/en/api-reference/endpoint/apps/realtime
 */
type APIRealtimeSystemEvent = "REALTIME_CONNECTING" | "REALTIME_TIMEOUT" | "REALTIME_DISCONNECTED" | "REALTIME_RECONNECT" | "REALTIME_ERROR";
declare const APIRealtimeSystemEvent: {
    readonly Connecting: "REALTIME_CONNECTING";
    readonly Timeout: "REALTIME_TIMEOUT";
    readonly Disconnected: "REALTIME_DISCONNECTED";
    readonly Reconnect: "REALTIME_RECONNECT";
    readonly Error: "REALTIME_ERROR";
};

export { APIRealtimeSystemEvent };