export declare const INVALID_HANDLE = "handle.invalid";
export type HandleString = `${string}.${string}`;
export declare const DISALLOWED_TLDS: string[];
export declare function ensureValidHandle<I extends string>(input: I): asserts input is I & HandleString;
export declare function ensureValidHandleRegex<I extends string>(input: I): asserts input is I & HandleString;
export declare function normalizeHandle(handle: HandleString): HandleString;
export declare function normalizeHandle(handle: string): string;
export declare function normalizeAndEnsureValidHandle(handle: string): HandleString;
export declare function isValidHandle<I extends string>(input: I): input is I & HandleString;
export declare function isValidTld(handle: string): boolean;
export declare class InvalidHandleError extends Error {
}
/** @deprecated Never used */
export declare class ReservedHandleError extends Error {
}
/** @deprecated Never used */
export declare class UnsupportedDomainError extends Error {
}
/** @deprecated Never used */
export declare class DisallowedDomainError extends Error {
}
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