CSAA or EQAA

Hi,
is it possible to use these techniques (EQAA or CSAA) right now in Vulkan?
Are there any code examples?
Maybe these extensions (VK_AMD_mixed_attachment_samples,VK_NV_framebuffer_mixed_samples,VK_EXT_sample_locations ) will be helpful in implementing these techniques?

Wow I’ve just noticed that AMD makes new extension for OpenGL https://www.khronos.org/registry/OpenGL/extensions/AMD/AMD_framebuffer_multisample_advanced.txt
Great so is hope that Vulkan will receive the same extension. IMHO VK_AMD_mixed_attachment_samples is not enough for EQAA.
Now I hope that Nvidia and Intel will implement this AA mode too.