pub type PFN_vkCreateOpticalFlowSessionNV = unsafe extern "system" fn(device: Device, p_create_info: *const OpticalFlowSessionCreateInfoNV, p_allocator: *const AllocationCallbacks, p_session: *mut OpticalFlowSessionNV) -> Result;
pub type PFN_vkCreateOpticalFlowSessionNV = unsafe extern "system" fn(device: Device, p_create_info: *const OpticalFlowSessionCreateInfoNV, p_allocator: *const AllocationCallbacks, p_session: *mut OpticalFlowSessionNV) -> Result;