The pokemon on the other side of the interaction
Optionalpassive(For callers of applyAbAttrs): If provided, only apply ability attributes of the passive (true) or active (false).
This should almost always be left undefined, as otherwise it will only apply attributes of either the pokemon's passive (true) or non-passive (false) ability. In almost all cases, you want to apply attributes that are from either.
(For implementations of AbAttr): This will never be undefined, and will be true if the ability being applied
is the pokemon's passive, and false otherwise.
ReadonlypokemonThe pokemon that has the ability being applied
ReadonlyppHolder for the amount of PP that will be consumed; can be modified by ability application
Optional ReadonlysimulatedWhether the ability's effects are being simulated (for instance, during AI damage calculations).
Construct a type with the properties of T except for those in type K.