import type { CurrentReadable } from '../core/current-value.js';
import { type SetMotionGPUUserContextOptions } from '../core/motiongpu-context.js';
import { type MotionGPUUserNamespace } from './motiongpu-context.js';
export type { SetMotionGPUUserContextOptions } from '../core/motiongpu-context.js';
/**
 * Internal shape of the user context store.
 */
type UserContextStore = Record<MotionGPUUserNamespace, unknown>;
/**
 * Returns a read-only view of the entire motiongpu user context store.
 */
export declare function useMotionGPUUserContext<UC extends UserContextStore = UserContextStore>(): CurrentReadable<UC>;
/**
 * Reads a namespaced user context value as a reactive readable store.
 */
export declare function useMotionGPUUserContext<UC extends UserContextStore = UserContextStore, K extends keyof UC & MotionGPUUserNamespace = keyof UC & MotionGPUUserNamespace>(namespace: K): CurrentReadable<UC[K] | undefined>;
/**
 * Returns a stable setter bound to the active MotionGPU user context store.
 *
 * @returns Setter function that preserves namespace write semantics.
 */
export declare function useSetMotionGPUUserContext(): <UCT = unknown>(namespace: MotionGPUUserNamespace, value: UCT | (() => UCT), options?: SetMotionGPUUserContextOptions) => UCT | undefined;
/**
 * Sets a namespaced user context value with explicit write semantics.
 *
 * Returns the effective value stored under the namespace.
 */
export declare function setMotionGPUUserContext<UCT = unknown>(namespace: MotionGPUUserNamespace, value: UCT | (() => UCT), options?: SetMotionGPUUserContextOptions): UCT | undefined;
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