/**
 * Calculates tokens per second performance using Transformers.js
 * Uses the onnx-community/Qwen3-0.6B-ONNX model for realistic AI inference benchmarking
 * Automatically detects environment and uses appropriate backend (WebGPU/WASM/Node.js)
 * @returns Promise<number> - The tokens per second as an integer
 */
export declare function calculateTPS(): Promise<number>;