/**
 * Create a durable background task check step.
 *
 * Mirrors the regular agent's backgroundTaskCheckStep pattern:
 * - After tool calls complete, checks if any background tasks are still running
 * - If no running tasks: passes through unchanged
 * - If an explicit waitTimeoutMs is configured and retryCount === 0: returns
 *   immediately with backgroundTaskPending=true (caller drives continuation)
 * - Otherwise: waits for the next task to complete using the configured
 *   waitTimeoutMs or a 1 s default — this keeps the workflow (and its pubsub
 *   subscription) alive so background-task tool-result chunks are delivered
 * - When a task completes: sets isContinued=true so the LLM processes the result
 */
export declare function createDurableBackgroundTaskCheckStep(): import("../../../../workflows").Step<string, unknown, any, any, unknown, unknown, import("../../../../workflows").DefaultEngineType, unknown>;
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