/**
 * Returns a promise that waits for the given condition function to return true.
 * If the condition function returns false, it will continue to be called at a regular interval until
 * the condition function returns true.
 * @param condition A function that must return true in order for the promise to resolve.
 * @param timeout An optional timeout value. Must be greater than 0 to be used. If condition is not met before timeout (ms), then the promise is rejected.
 * @param tickRate A optional tick rate value. Must be greater than 0. How frequently the condition function should be called (in ms).
 */
export declare function waitForCondition(condition: () => boolean, timeout?: number, tickRate?: number): Promise<void>;
/**
 * Return a promise that waits the given number of seconds before resolving.
 * @param seconds Number of seconds to wait before resolving the promise.
 * @deprecated Use APEngine.time.waitForSeconds instead. This allows the promise to be responsive to pause/timescale.
 */
export declare function waitForSeconds(seconds: number): Promise<void>;