declare const SUPPORTED_NAME_SERVICES: readonly [".eth", ".lens", ".csb", ".bnb", ".bit", ".crypto", ".zil", ".nft", ".x", ".wallet", ".bitcoin", ".dao", ".888", ".blockchain", ".avax", ".arb", ".cyber"];
type SupportedNameService = (typeof SUPPORTED_NAME_SERVICES)[number];
/**
 * Check if the handle's name service is supported.
 * @param handle
 */
declare function isSupportedNS(handle?: string | null): handle is `${string}${SupportedNameService}`;

export { SUPPORTED_NAME_SERVICES, type SupportedNameService, isSupportedNS };