I'll just bet she was cooperative. All her answers were probably, "I don't recall."
Cheryl Mills said the same thing when she was deposed, “I dont recall” over and over and over again I think over 200 times
I can imagine Hillary warning the FBI agents there will be hell to pay if she is elected.
“Cooperative” means only that she responded without the need for a subpoena and did not assert 5th Amendment rights. That is all.