/** This file must only contain pure code and pure imports */
/**
 * Register side effects for enginesExtensionsEngineTexture2DArrayImageSource.
 * Adds AbstractEngine.updateTextureArrayLayerFromImageSource on the WebGL2 engine.
 * Safe to call multiple times; only the first call has an effect.
 */
export declare function RegisterEnginesExtensionsEngineTexture2DArrayImageSource(): void;