On February 17, 2020, the Vancouver Canucks acquired Tyler Toffoli from the Los Angeles Kings via trade. The former New York Islanders trade target was acquired for a roster player, a prospect, and two picks: a 2020 second-round pick and a conditional fourth-round pick in 2022.
Los Angeles would get that 2022 fourth-round pick from Vancouver if Toffoli re-signed with the Canucks.
It's a fairly common condition attached to a pick when a team trades a pending UFAs. By trading that pending UFA before they hit the market the new team can offer that UFA eight years on a new deal instead of seven.