Parameters

static void a(){}
static void aa(int, string){}
auto b = (){};
auto bb = (int s, string ss){};

static assert(is(Parameters!a == AliasSeq!()));
static assert(is(Parameters!aa == AliasSeq!(int, string)));
static assert(is(Parameters!b == AliasSeq!()));
static assert(is(Parameters!bb == AliasSeq!(int, string)));