import { type AtomicStateScope } from '../atomic-state.ts';
import type { WorkflowAtomicState, WorkflowAtomicStateOptions, WorkflowStateNamespace } from '../types.ts';
import type { Context } from './index.ts';
import type { ContextInternals } from './internals.ts';
import type { ContextOperationRequest } from './operation-request.ts';
interface WorkflowAtomicStateOperationCache {
    nextStep(): number;
    has(step: number): boolean;
    get(step: number): unknown;
    set(step: number, value: unknown): void;
}
export declare function createStateNamespace(context: Context, internals: ContextInternals): WorkflowStateNamespace;
export declare class WorkflowAtomicStateHandle<T> extends EventTarget implements WorkflowAtomicState<T> {
    #private;
    constructor(scope: AtomicStateScope, key: string, options?: WorkflowAtomicStateOptions<T>, operationCache?: WorkflowAtomicStateOperationCache);
    get(): Generator<ContextOperationRequest, T | undefined, unknown>;
    set(value: T): Generator<ContextOperationRequest, T, unknown>;
    update(updater: (current: T | undefined) => T): Generator<ContextOperationRequest, T, unknown>;
    delete(): Generator<ContextOperationRequest, void, unknown>;
    increment(this: WorkflowAtomicStateHandle<number>, amount?: number): Generator<ContextOperationRequest, number, unknown>;
    decrement(this: WorkflowAtomicStateHandle<number>, amount?: number): Generator<ContextOperationRequest, number, unknown>;
    merge<TObject extends Record<string, unknown>>(this: WorkflowAtomicStateHandle<TObject>, patch: Partial<TObject>): Generator<ContextOperationRequest, TObject, unknown>;
    append<TItem>(this: WorkflowAtomicStateHandle<TItem[]>, item: TItem): Generator<ContextOperationRequest, TItem[], unknown>;
    removeFirst<TItem>(this: WorkflowAtomicStateHandle<TItem[]>): Generator<ContextOperationRequest, TItem | undefined, unknown>;
    removeLast<TItem>(this: WorkflowAtomicStateHandle<TItem[]>): Generator<ContextOperationRequest, TItem | undefined, unknown>;
}
export {};