1. DomName('WebGL2RenderingContext.compressedTexImage2D')
  2. DocsEditable()
  3. Experimental()
void compressedTexImage2D(int target, int level, int internalformat, int width, int height, int border, TypedData data)

Source 

@DomName('WebGL2RenderingContext.compressedTexImage2D')
@DocsEditable()
@Experimental() // untriaged
void compressedTexImage2D(int target, int level, int internalformat, int width, int height, int border, TypedData data) => _blink.BlinkWebGL2RenderingContext.instance.compressedTexImage2D_Callback_7_(this, target, level, internalformat, width, height, border, data);