import type { InjectionKey } from 'vue';
export interface ContextConstructor<TParams extends unknown[], TContext> {
    (this: void, ...params: TParams): TContext;
}
export interface ContextDefinition<TParams extends unknown[], TContext> {
    readonly name: string;
    readonly setup: ContextConstructor<TParams, TContext>;
    readonly symbol: InjectionKey<TContext>;
}
export type ContextOf<T> = T extends ContextDefinition<any, infer TContext> ? TContext : never;
export type ContextParams<T> = T extends ContextDefinition<infer TParams, any> ? TParams : never;
export declare function defineContext<TContext>(name: string): ContextDefinition<[context: TContext], TContext>;
export declare function defineContext<TParams extends unknown[], TContext>(name: string, context: ContextConstructor<TParams, TContext>): ContextDefinition<TParams, TContext>;
export declare function provideContext<TParams extends unknown[], TContext>(context: ContextDefinition<TParams, TContext>, ...params: TParams): TContext;
export declare function injectContext<TParams extends unknown[], TContext>(context: ContextDefinition<TParams, TContext>): TContext;
export declare function injectContext<TParams extends unknown[], TContext>(context: ContextDefinition<TParams, TContext>, opts: {
    optional: boolean;
}): TContext | null;