import type { OpenApiDocument } from '../types.js';
/**
 * Convert OpenAPI schema objects to JSON Schema in-place on a cloned document.
 *
 * Rather than visiting every node in the document (the previous brute-force
 * approach), we convert only the locations the OAS spec defines as Schema
 * Objects:
 *
 *   1. components.schemas[*] / definitions[*] — converted directly, since
 *      these are top-level schema objects not nested under a `schema` key.
 *
 *   2. Any value under a literal `schema` key elsewhere in the document
 *      (parameter schemas, requestBody content schemas, response content
 *      schemas, header schemas, callback schemas) — covered by
 *      walkAndConvertDefinitionKeys.
 *
 * fromSchema recurses into sub-schemas (properties, allOf, anyOf, …)
 * internally, so it only needs to be called once per top-level schema entry.
 *
 * OpenAPI 3.1+ schemas are already valid JSON Schema (Draft 2020-12) and
 * require no conversion.
 */
export declare function convertOpenApiDocumentDefinitionsToJsonSchema(document: OpenApiDocument): OpenApiDocument;