template<typename T, typename T1, typename T2 = void, typename T3 = void, typename T4 = void, typename T5 = void, typename T6 = void, typename T7 = void, typename T8 = void, typename T9 = void, typename T10 = void, typename T11 = void, typename T12 = void, typename T13 = void, typename T14 = void, typename T15 = void, typename T16 = void>
struct etl::is_one_of< T, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16 >
Template to determine if a type is one of a specified list.