/**
 * Canonicalize a worker's serving URL into its `iss` identity.
 *
 * Returns the full URL with trailing slash(es) stripped — the base path is
 * preserved (an issuer may carry a non-empty path, like `…/kernel/host`). This
 * is the single canonical form used for outbound signing, the JWKS issuer,
 * `/meta`, the install credential, and any `Identity.iss` a domain seeds, so the
 * value a worker SIGNS always matches the value the kernel LOOKS UP (the kernel
 * canonicalizes the verified `iss` the same way and does an exact-match lookup).
 *
 * Throws if `url` is not a parseable absolute URL.
 */
export declare function canonicalizeServingUrl(url: string): string;
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