import { Listener } from './Listener';
import { PointerHolder } from './PointerHolder';
export type FrameInfo = {
    /**
     * The current timestamp in nanoseconds.
     */
    timestamp: number;
    /**
     * Timestamp when the rendering started
     */
    startTime: number;
    /**
     * Time in seconds since the rendering started.
     */
    passedSeconds: number;
    /** Time in seconds since the last frame. */
    timeSinceLastFrame: number;
};
export type RenderCallback = (frameInfo: FrameInfo) => void;
export interface Choreographer extends PointerHolder {
    start(): void;
    stop(): void;
    addFrameCallbackListener(callback: RenderCallback): Listener;
}
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