boss_record_lib question

[till haxor]

hello CB community,

i have a question, in cb_admin model controller, action create use DummyRecord = boss_record_lib:dummy_record(Module),
but, i dont know how to get data type on the template,

the template create.html use a for
{% for key, val in record.attributes %}

but, how to get the type of key variable?

thanks.

pd: excuse my bad english