/// <reference types="@cloudflare/workers-types" />
import { AsyncMapLike } from 'async-map-like';
declare type ListKey = {
    name: string;
    expiration?: number | undefined;
    metadata?: unknown;
};
declare type PutOptions = {
    expiration?: string | number | undefined;
    expirationTtl?: string | number | undefined;
    metadata?: any;
};
declare type ListOptions = {
    prefix?: string | undefined;
    limit?: number | undefined;
    cursor?: string | undefined;
};
export declare type ValueAndMeta = {
    value: string;
    metadata: any | null;
};
export declare class KV implements KVNamespace {
    private readonly data;
    constructor(backend: Map<string, ValueAndMeta> | AsyncMapLike<string, ValueAndMeta>);
    get(key: string, options?: {
        cacheTtl?: number;
    }): KVValue<string>;
    get(key: string, type: 'text'): KVValue<string>;
    get<ExpectedValue = unknown>(key: string, type: 'json'): KVValue<ExpectedValue>;
    get(key: string, type: 'arrayBuffer'): KVValue<ArrayBuffer>;
    get(key: string, type: 'stream'): KVValue<ReadableStream>;
    get(key: string, options?: {
        type: 'text';
        cacheTtl?: number;
    }): KVValue<string>;
    get<ExpectedValue = unknown>(key: string, options?: {
        type: 'json';
        cacheTtl?: number;
    }): KVValue<ExpectedValue>;
    get(key: string, options?: {
        type: 'arrayBuffer';
        cacheTtl?: number;
    }): KVValue<ArrayBuffer>;
    get(key: string, options?: {
        type: 'stream';
        cacheTtl?: number;
    }): KVValue<ReadableStream>;
    getWithMetadata<Metadata = unknown>(key: string): KVValueWithMetadata<string, Metadata>;
    getWithMetadata<Metadata = unknown>(key: string, type: 'text'): KVValueWithMetadata<string, Metadata>;
    getWithMetadata<ExpectedValue = unknown, Metadata = unknown>(key: string, type: 'json'): KVValueWithMetadata<ExpectedValue, Metadata>;
    getWithMetadata<Metadata = unknown>(key: string, type: 'arrayBuffer'): KVValueWithMetadata<ArrayBuffer, Metadata>;
    getWithMetadata<Metadata = unknown>(key: string, type: 'stream'): KVValueWithMetadata<ReadableStream, Metadata>;
    put(key: string, value: string | ArrayBuffer | ReadableStream | FormData, options?: PutOptions): Promise<void>;
    delete(key: string): Promise<void>;
    list(options?: ListOptions): Promise<{
        keys: ListKey[];
        list_complete: boolean;
        cursor?: string | undefined;
    }>;
}
export {};