import { type VariableComposite, type VariableCompositeSpec } from "./variable-composite.js";
import { Variable, VariableSpec } from "./variable.js";
export declare let state: State;
export declare function registerVariable<T>(spec: VariableSpec<T>): Variable<T>;
export declare function registerVariableComposite<T, VM extends Record<string, Variable<any>>>(spec: VariableCompositeSpec<T, VM>): VariableComposite<T, VM>;
export declare function readVariable<T>(spec: VariableSpec<T>): string;
export declare function reset(): void;
type State = {
    readonly variables: Record<string, Variable<unknown>>;
    readonly composites: VariableComposite<unknown, Record<string, Variable<unknown>>>[];
};
export declare function variablesByName(): Variable<unknown>[];
export {};