/**
 * Helper for checking for WebGL support.
 * @param failIfMajorPerformanceCaveat - whether to fail if there is a major performance caveat, defaults to false
 * @memberof utils
 * @function isWebGLSupported
 * @returns {boolean} Is WebGL supported.
 */
export declare function isWebGLSupported(failIfMajorPerformanceCaveat?: boolean): boolean;