1. DomName('WebGL2RenderingContext.framebufferTextureLayer')
  2. DocsEditable()
  3. Experimental()
void framebufferTextureLayer(int target, int attachment, Texture texture, int level, int layer)

Source 

@DomName('WebGL2RenderingContext.framebufferTextureLayer')
@DocsEditable()
@Experimental() // untriaged
void framebufferTextureLayer(int target, int attachment, Texture texture, int level, int layer) => _blink.BlinkWebGL2RenderingContext.instance.framebufferTextureLayer_Callback_5_(this, target, attachment, texture, level, layer);