pub type PFN_vkCreateFence = unsafe extern "system" fn(device: Device, p_create_info: *const FenceCreateInfo, p_allocator: *const AllocationCallbacks, p_fence: *mut Fence) -> Result;
pub type PFN_vkCreateFence = unsafe extern "system" fn(device: Device, p_create_info: *const FenceCreateInfo, p_allocator: *const AllocationCallbacks, p_fence: *mut Fence) -> Result;