`trealsumlist`
		sumlevel
		isfoldsum
		sourcevalue
		sourcelevel
		sourceissum
pl		sumsup
pl		sumsdown
pl		options

`trealintdatalist`
		asarray
		asarraya
		asarrayb
		itemsb
		doubleitems

`trealdatalist`
		asarray
		items
		defaultzero
		acceptempty

`tdatalist`
	ro	size
	ro	state
		count
		capacity
		onchange
		onitemchange
		maxcount
		sorted
		checkeditem
		facultative

`tlinkedpersistent`

`tnullinterfacedpersistent`

`tvirtualpersistent`