OptionalhitterEnable PrizePicks Hitter FS / Underdog Fantasy Score auto-grading for MLB batters. Off by default because the formulas require fields (HBP for PrizePicks) that not all data feeds carry; flip it on once your upstream parser populates the needed mlbExtras keys.
Per-call options threaded through to every adapter. Most adapters ignore this; specific ones (currently only MLB Hitter FS / Fantasy Score) gate on flags here. The shape is open — add new fields as adapters need them.