Flags
VkExternalFenceFeatureFlags
Bitmask of VkExternalFenceFeatureFlagBits
typedef VkFlags VkExternalFenceFeatureFlags;
or the equivalent
typedef VkExternalFenceFeatureFlags VkExternalFenceFeatureFlagsKHR;
VkExternalFenceFeatureFlags is a bitmask type for setting a mask of
zero or more VkExternalFenceFeatureFlagBits.