On the casino I used to run, I started a pilot program with a homemade poker bot (labeled as such, and only deployed on poker tables labeled as "bot friendly"). The bot had no set model of its own. It was designed to mimic specific players on the casino, regulars who had played 10,000+ hands and who agreed to have their history cloned, by ingesting their entire hand/betting history and looking for what they had done in similar scenarios as far as hole card value, probability, position, pot odds, table "heat" (a rolling average of over- or under-betting from other players in the previous hands based on what they showed if they showed down), etc.
I got a few good players to agree to let me take all their data and make poker clones of them. What was really funny was watching them get baffled and often beaten in heads-up play against their doppelgangers. The bot never had more information about the game than any other player. But its betting style varied wildly depending on who it was based on.
As a side, this also helped me build a real-time system to monitor potential collusion based on betting patterns that deviated from a player's normal behavior at times when they were sitting at the same table as someone else whose patterns deviated in their presence.