pub type PFN_vkCreateFramebuffer = unsafe extern "system" fn(Device, *const FramebufferCreateInfo<'_>, *const AllocationCallbacks<'_>, *mut Framebuffer) -> Result;pub type PFN_vkCreateFramebuffer = unsafe extern "system" fn(Device, *const FramebufferCreateInfo<'_>, *const AllocationCallbacks<'_>, *mut Framebuffer) -> Result;