export type ENRRootValues = {
    eRoot: string;
    lRoot: string;
    seq: number;
    signature: string;
};
export type ENRTreeValues = {
    publicKey: string;
    domain: string;
};
export declare class ENRTree {
    static readonly RECORD_PREFIX = "enr:";
    static readonly TREE_PREFIX = "enrtree:";
    static readonly BRANCH_PREFIX = "enrtree-branch:";
    static readonly ROOT_PREFIX = "enrtree-root:";
    /**
     * Extracts the branch subdomain referenced by a DNS tree root string after verifying
     * the root record signature with its base32 compressed public key.
     */
    static parseAndVerifyRoot(root: string, publicKey: string): string;
    static parseRootValues(txt: string): ENRRootValues;
    /**
     * Returns the public key and top level domain of an ENR tree entry.
     * The domain is the starting point for traversing a set of linked DNS TXT records
     * and the public key is used to verify the root entry record
     */
    static parseTree(tree: string): ENRTreeValues;
    /**
     * Returns subdomains listed in an ENR branch entry. These in turn lead to
     * either further branch entries or ENR records.
     */
    static parseBranch(branch: string): string[];
}