/**
 * Response mode determined by Accept header.
 */
export type DualModeType = 'json' | 'sse';
/**
 * Minimal logger interface for dual-mode route error handling.
 * Compatible with CommonLogger from @lokalise/node-core and pino loggers.
 */
export type DualModeLogger = {
    error: (obj: Record<string, unknown>, msg: string) => void;
    warn?: (obj: Record<string, unknown>, msg: string) => void;
};
/**
 * Configuration options for dual-mode controllers.
 */
export type DualModeControllerConfig = {
    /**
     * Enable connection spying for testing.
     * When enabled, the controller tracks connections and allows waiting for them.
     * Only enable this in test environments.
     * @default false
     */
    enableConnectionSpy?: boolean;
};