API C PetBattles.CanPetSwapIn

Returns whether or not the pet can swap in to the active position. usable = C_PetBattles.CanPetSwapIn(petIndex)

Arguments

 * petIndex: Number - Accepted values are 1-3, but the order is based off of the initial order. Which pet is currently active is irrelevant to the index, if it was your 3rd pet when you entered battle, it will always be 3 on the index.

Returns

 * usable: Boolean - True if the pet is able to swap in, false otherwise.