pub type PFN_vkGetPhysicalDeviceMultisamplePropertiesEXT = unsafe extern "system" fn(_physical_device: PhysicalDevice, _samples: SampleCountFlags, _multisample_properties: *mut MultisamplePropertiesEXT);pub type PFN_vkGetPhysicalDeviceMultisamplePropertiesEXT = unsafe extern "system" fn(_physical_device: PhysicalDevice, _samples: SampleCountFlags, _multisample_properties: *mut MultisamplePropertiesEXT);