std::ostream& operator<< (std::ostream& s, const VkSparseImageFormatProperties2KHR& value);
std::ostream& operator<< (std::ostream& s, const VkPhysicalDeviceSparseImageFormatInfo2KHR& value);
std::ostream& operator<< (std::ostream& s, const VkPhysicalDevicePushDescriptorPropertiesKHR& value);
+std::ostream& operator<< (std::ostream& s, const VkPhysicalDevice16BitStorageFeaturesKHR& value);
std::ostream& operator<< (std::ostream& s, const VkRectLayerKHR& value);
std::ostream& operator<< (std::ostream& s, const VkPresentRegionKHR& value);
std::ostream& operator<< (std::ostream& s, const VkPresentRegionsKHR& value);