/**
 * Drop every top-level `tags` entry no operation of the document references.
 *
 * A tag object with no readable `name` is kept: reachability cannot speak to a
 * tag it cannot identify, and keeping it only ever leaves a description on
 * screen.
 *
 * The input document is never mutated.
 *
 * The type parameter is deliberately unconstrained, matching
 * {@link pruneUnreachableComponents}: `openapi-types`' `Document` interfaces
 * have no index signatures, so they do not structurally satisfy
 * {@link OpenApiDocumentLike} even though `app.swagger()` returns exactly that.
 */
export declare function pruneUnreferencedTags<Document>(document: Document): Document;