Closes the subcontainer inside the given builder that was opened by
the most recent call to Variant.builderOpen.
It is an error to call this function in any way that would create an
inconsistent value to be constructed (ie: too few values added to the
subcontainer).
Closes the subcontainer inside the given builder that was opened by the most recent call to Variant.builderOpen.
It is an error to call this function in any way that would create an inconsistent value to be constructed (ie: too few values added to the subcontainer).