/**
 * A connected Server-Sent Events client.
 *
 * This is the subset of the underlying stream that the server needs in order to
 * broadcast file-change events and shut connections down — the route that
 * accepts the connection owns the stream itself and keeps the request handler
 * alive for as long as the client stays connected.
 */
export interface SseClient {
    /**
     * Push a named event to this client.
     */
    send(event: string, data: string): Promise<void>;
    /**
     * True once the client disconnected or the connection was closed.
     */
    readonly closed: boolean;
    /**
     * Close the connection and release the request handler holding it open.
     */
    close(): Promise<void>;
}
export interface CommonLogger {
    debug(...messages: unknown[]): void;
    info(...messages: unknown[]): void;
    warn(...messages: unknown[]): void;
    error(...messages: unknown[]): void;
}