export interface ParsedEsmShUrl {
    readonly origin: string;
    readonly packageName: string;
    readonly version: string | null;
    readonly subpath: string;
    readonly search: string;
    readonly hash: string;
}
/** Check if a URL is hosted by the canonical esm.sh origin. */
export declare function isEsmShUrl(url: string): boolean;
/**
 * Split an esm.sh URL into its npm coordinates. Returns null for anything that
 * is not a plain `pkg`, `pkg@version`, or `@scope/pkg` path.
 */
export declare function parseEsmShUrl(url: string): ParsedEsmShUrl | null;
/** Parse esm.sh spellings accepted by browser URL resolution for policy enforcement. */
export declare function parseConfiguredExternalEsmShUrl(url: string): ParsedEsmShUrl | null;
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