import { Controller } from '@data-client/core';
import type { State } from '@data-client/core';
import { type InjectionKey, type ShallowRef } from 'vue';
export declare const StateKey: InjectionKey<ShallowRef<State<unknown>>>;
export declare const ControllerKey: InjectionKey<Controller>;
/** Fallback state ref used when no provider is found. */
export declare const FallbackStateRef: ShallowRef<State<unknown>>;
export declare function useController(): Controller;
export declare function injectState(): ShallowRef<State<unknown>>;
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