/**
 * Ball TypeScript Engine — interprets Ball programs directly from JSON.
 *
 * This is a compatibility wrapper around the compiled (self-hosted)
 * Ball engine.  The compiled engine is generated by compiling
 * `dart/self_host/engine.ball.json` through `@ball-lang/compiler`.
 *
 * Usage:
 *   import { BallEngine } from '@ball-lang/engine';
 *   const engine = new BallEngine(programJson);
 *   await engine.run();
 *   console.log(engine.getOutput());
 */
export interface BallEngineOptions {
    stdout?: (msg: string) => void;
    stderr?: (msg: string) => void;
    /** Maximum execution time in milliseconds (null = unbounded). */
    timeoutMs?: number | null;
    /** Maximum memory usage in bytes (null = unbounded). */
    maxMemoryBytes?: number | null;
    /** Maximum number of modules allowed in the program (default: 1000000). */
    maxModules?: number;
    /** Maximum expression nesting depth (default: 1000000). */
    maxExpressionDepth?: number;
    /** Maximum program JSON size in bytes (null = skip check). */
    maxProgramSizeBytes?: number | null;
    /** Whether to run in sandbox mode (blocks file I/O, env access, etc.). */
    sandbox?: boolean;
    /** Maximum recursion depth (default: 100000). */
    maxRecursionDepth?: number;
}
export declare class BallEngine {
    private _compiledEngine;
    private _output;
    constructor(program: any, options?: BallEngineOptions);
    /**
     * Run the program.  Returns a promise that resolves to the captured
     * output lines (same content as `getOutput()`).
     *
     * NOTE: The compiled engine is async internally.  If you were relying
     * on synchronous `run()`, wrap your call in `await`.
     */
    run(): Promise<string[]>;
    /** Retrieve lines printed via `std.print` (when no custom stdout was given). */
    getOutput(): string[];
}
export { StdModuleHandler } from './compiled_engine.ts';
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