pub type PFN_vkGetDeviceMemoryCommitment = unsafe extern "system" fn(device: Device, memory: DeviceMemory, p_committed_memory_in_bytes: *mut DeviceSize);
pub type PFN_vkGetDeviceMemoryCommitment = unsafe extern "system" fn(device: Device, memory: DeviceMemory, p_committed_memory_in_bytes: *mut DeviceSize);