Following those links you can eventually make your way toÂhttps://github.com/usnistgov/ACVP#drbg and from there a link as to how to describe each DRBG supported for testing.
One example test case (TC-Q-RNGS-2-21) shows returning such information from a Query operation:
   <RNGParameters>     <RNGAlgorithm type="Enumeration" value="ANSIX9_31"/>     <CryptographicAlgorithm type="Enumeration" value="AES"/>     <CryptographicLength type="Integer" value="256"/>    </RNGParameters>