pub unsafe extern "system" fn vkGetDeferredOperationMaxConcurrencyKHR(
device: VkDevice,
operation: VkDeferredOperationKHR,
) -> u32pub unsafe extern "system" fn vkGetDeferredOperationMaxConcurrencyKHR(
device: VkDevice,
operation: VkDeferredOperationKHR,
) -> u32