<member type="method" namespace="Steamworks" parent="SteamInventory" name="AddPromoItemAsync" async="true" static="true"> <args> <arg name="id" type="Data.InventoryDefId"></arg> </args> <return type="Task<Nullable<InventoryResult>>"></return> <summary>Trigger a promo item drop. You can call this at startup, it won't give users multiple promo drops.</summary> </member>