/**
 * Helper class for detecting WebAssembly feature support (SIMD, Memory64 / wasm64).
 */
export declare class FeatureDetectionHelper {
    /**
     * Detects whether the current browser supports WebAssembly SIMD instructions.
     * This code is run once and the result is cached. If your browser supports Wasm SIMD then all following calls will return true
     *
     * See also {@link SciChartDefaults.useWasmSimd} to globally enable or disable Wasm simd support in SciChart.js
     *
     * @returns true if WASM SIMD is supported, false otherwise
     */
    static supportsWasmSIMD(): boolean;
    /**
     * Detects whether the current browser supports the WebAssembly Memory64 (wasm64) variant of SciChart.
     *
     * SciChart only ships a wasm64 binary that is ALSO compiled with SIMD, so this returns true only when
     * BOTH Memory64 and SIMD are supported. Note that Memory64 support is a strict subset of SIMD support
     * (e.g. Safari supports SIMD but not Memory64 as of 2025), so this must always be paired with a wasm32 fallback.
     *
     * The result is cached after the first call.
     *
     * See also {@link SciChartDefaults.useWasm64} to globally enable or disable wasm64 in SciChart.js.
     *
     * @returns true if both Memory64 and SIMD are supported, false otherwise
     */
    static supportsWasm64(): boolean;
    /**
     * Cached result of SIMD detection to avoid repeated validation
     */
    private static supportsSimd;
    /**
     * Cached result of wasm64 (Memory64 + SIMD) detection
     */
    private static supportsMemory64Simd;
}