pub fn instance_extension_properties(
layer_name: Option<&CStr>,
sink: &mut [MaybeUninit<VkExtensionProperties>],
) -> Result<ArrayQueryResult<u32>>pub fn instance_extension_properties(
layer_name: Option<&CStr>,
sink: &mut [MaybeUninit<VkExtensionProperties>],
) -> Result<ArrayQueryResult<u32>>