any
anynonnull
binary
date
datetime
datetimezone
duration
function
list
logical
none
number
record
table
text
time

----------------------------------------------------

[
	["data-type", "any"],
	["data-type", "anynonnull"],
	["data-type", "binary"],
	["data-type", "date"],
	["data-type", "datetime"],
	["data-type", "datetimezone"],
	["data-type", "duration"],
	["data-type", "function"],
	["data-type", "list"],
	["data-type", "logical"],
	["data-type", "none"],
	["data-type", "number"],
	["data-type", "record"],
	["data-type", "table"],
	["data-type", "text"],
	["data-type", "time"]
]

----------------------------------------------------

Checks for data-type.