import type { OASDocument } from '../rmoas.types';
export interface ReducerOptions {
    /** A key-value object of path + method combinations to reduce by. */
    paths?: Record<string, string[] | '*'>;
    /** An array of tags in the OpenAPI definition to reduce by. */
    tags?: string[];
}
/**
 * With an array of tags or object of paths+method combinations, reduce an OpenAPI definition to a
 * new definition that just contains those tags or path + methods.
 *
 * @example <caption>Reduce by an array of tags only.</caption>
 * { APIDEFINITION, { tags: ['pet'] } }
 *
 * @example <caption>Reduce by a specific path and methods.</caption>
 * { APIDEFINITION, { paths: { '/pet': ['get', 'post'] } } }
 *
 * @example <caption>Reduce by a specific path and all methods it has.</caption>
 * { APIDEFINITION, { paths: { '/pet': '*' } } }
 *
 * @param definition A valid OpenAPI 3.x definition
 */
export default function reducer(definition: OASDocument, opts?: ReducerOptions): OASDocument;