import { VisualizationEngine } from "@/core/visualization";
import { UIComponentDependencies } from "@/lib/components/ui";
/**
 * Register a global <Space> key listener that toggles playback.
 * Returns an unregister callback so the caller can dispose the side-effect.
 */
export declare function registerSpaceShortcut(engine: VisualizationEngine, depsGetter: () => UIComponentDependencies): () => void;
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