util.jsonschema: Fix Lua 5.2 integer compat
math.type() is unavailable before Lua 5.3 so this should use the compat
function added at the top
-- TODO s/number/integer/ once Teal gets support for that
local record lib
date : function (t : integer) : string
datetime : function (t : integer) : string
time : function (t : integer) : string
legacy : function (t : integer) : string
parse : function (t : string) : integer
end
return lib