pub type PFN_vkGetPhysicalDeviceCalibrateableTimeDomainsEXT = unsafe extern "system" fn(physical_device: PhysicalDevice, p_time_domain_count: *mut u32, p_time_domains: *mut TimeDomainEXT) -> Result;
pub type PFN_vkGetPhysicalDeviceCalibrateableTimeDomainsEXT = unsafe extern "system" fn(physical_device: PhysicalDevice, p_time_domain_count: *mut u32, p_time_domains: *mut TimeDomainEXT) -> Result;