1. @DomName('WebGL2RenderingContext.compressedTexSubImage3D')
  2. @DocsEditable()
  3. @Experimental()
void compressedTexSubImage3D(int target, int level, int xoffset, int yoffset, int zoffset, int width, int height, int depth, int format, TypedData data)

Source 

@DomName('WebGL2RenderingContext.compressedTexSubImage3D')
@DocsEditable()
@Experimental() // untriaged
void compressedTexSubImage3D(
        int target,
        int level,
        int xoffset,
        int yoffset,
        int zoffset,
        int width,
        int height,
        int depth,
        int format,
        TypedData data) =>
    _blink.BlinkWebGL2RenderingContext.instance
        .compressedTexSubImage3D_Callback_10_(this, target, level, xoffset,
            yoffset, zoffset, width, height, depth, format, data);