/**
 * Wexts Vercel Build Output API builder.
 *
 * Produces the `.vercel/output` tree (Build Output API v3) that Vercel
 * uses for deployment. This module is invoked by `wexts vercel-build`.
 *
 * Layout produced:
 *   .vercel/output/
 *     config.json           – { version: 3 }
 *     static/               – public / static assets copied here
 *     functions/
 *       index.func/
 *         index.js           – serverless entry point
 *         package.json       – { type: "module" } or cjs
 *         .vc-config.json    – Vercel function config
 *         ...copied runtime files
 */
interface VercelBuildOptions {
    /** Project root (cwd). Defaults to process.cwd(). */
    rootDir?: string;
    /** Path to NestJS/API project for codegen. */
    apiProjectPath?: string;
    /** Output directory for generated RPC client. */
    rpcOutputPath?: string;
    /** Path to wexts.runtime.js config. */
    runtimeConfigPath?: string;
    /** Node.js runtime version for the Vercel function. */
    nodeVersion?: string;
    /** Max duration in seconds for the serverless function. */
    maxDuration?: number;
    /** Memory size in MB for the serverless function. */
    memory?: number;
    /** Regions to deploy to. */
    regions?: string[];
    /** Skip the RPC codegen step. */
    skipCodegen?: boolean;
    /** Skip the Next.js / project build step. */
    skipBuild?: boolean;
}
interface VercelBuildResult {
    outputDir: string;
    configPath: string;
    functionDir: string;
    staticDir: string;
    errors: string[];
    warnings: string[];
}
/**
 * Build the `.vercel/output` directory from a Wexts project.
 */
declare function buildVercelOutput(options?: VercelBuildOptions): Promise<VercelBuildResult>;
interface ValidationResult {
    errors: string[];
    warnings: string[];
}
declare function validateOutput(outputDir: string): ValidationResult;

export { type ValidationResult, type VercelBuildOptions, type VercelBuildResult, buildVercelOutput, validateOutput };