export type Dict = Record<PropertyKey, unknown>;
type RequiredView<T> = {
    [K in keyof T]-?: Exclude<T[K], undefined>;
};
type StateAccess<T> = {
    [K in keyof T]: T[K] | undefined;
} & {
    required: RequiredView<T>;
};
export type InvokeStateInstance<T extends Dict> = StateAccess<T> & {
    get<K extends keyof T>(key: K): T[K] | undefined;
    getOrThrow<K extends keyof T>(key: K, message?: string): Exclude<T[K], undefined>;
    set<K extends keyof T>(key: K, value: T[K]): InvokeStateInstance<T>;
    set(patch: Partial<T>): InvokeStateInstance<T>;
    snapshot(): Readonly<Partial<T>>;
};
export declare class InvokeState {
    private constructor();
    static create<T extends Dict>(initial?: Partial<T>): InvokeStateInstance<T>;
}
export {};