import { OpenApi as OpenApiV2 } from '../openApi/v2/interfaces/OpenApi.js';
import { OpenApi as OpenApiV3 } from '../openApi/v3/interfaces/OpenApi.js';
type OpenApiInput = Pick<OpenApiV2, 'swagger'> | Pick<OpenApiV3, 'openapi'>;
export declare enum OpenApiVersion {
    V2 = 2,
    V3 = 3
}
/**
 * Get the Open API specification version (V2 or V3). This generator only supports
 * version 2 and 3 of the specification, so we will alert the user if we encounter
 * an incompatible type. Or if the type is missing...
 * @param openApi The loaded spec (can be any object)
 */
export declare const getOpenApiVersion: (openApi: OpenApiInput) => OpenApiVersion;
export {};