How should "de-embedded" block amplifier S-parameters be used?

Specifically on gain blocks like the ADL5602 or ADL5611,  the file names for the S-parameter files all include the word "de-embedded."  To what point of the part is the de-embedding done (is it chip level or package level), or does this just mean the PCB traces, DC blocks and bias elements have been de-embedded?  Are package effects included in the S-parameters?