pub type PFN_vkMergeValidationCachesEXT = unsafe extern "system" fn(device: Device, dst_cache: ValidationCacheEXT, src_cache_count: u32, p_src_caches: *const ValidationCacheEXT) -> Result;
pub type PFN_vkMergeValidationCachesEXT = unsafe extern "system" fn(device: Device, dst_cache: ValidationCacheEXT, src_cache_count: u32, p_src_caches: *const ValidationCacheEXT) -> Result;