export type Provider = "cloudflare" | "loophole" | "zrok" | "expose" | "packetriot" | "srvus";
export interface FolderexConfig {
    user?: string;
    pass?: string;
    tunnel?: Provider;
    subdomain?: string;
    sshkey?: string;
    port?: string;
    [key: string]: string | undefined;
}
declare const VALID_KEYS: readonly ["user", "pass", "tunnel", "subdomain", "sshkey", "port"];
type ConfigKey = (typeof VALID_KEYS)[number];
export declare function isValidKey(key: string): key is ConfigKey;
export declare function isValidProvider(value: string): value is Provider;
export declare function getValidKeys(): readonly string[];
export declare function getConfig(): FolderexConfig;
export declare function getConfigValue(key: string): string | undefined;
export declare function setConfigValue(key: string, value: string): void;
export declare function deleteConfigValue(key: string): boolean;
export declare function listConfig(): Array<{
    key: string;
    value: string;
}>;
export {};