init init_aasnullableexterncall (
		n_type: nullable AType,
		n_kwas: nullable TKwas,
		n_kwnullable: nullable TKwnullable
	)
	do
		_n_type = n_type.as(not null)
		n_type.parent = self
		_n_kwas = n_kwas.as(not null)
		n_kwas.parent = self
		_n_kwnullable = n_kwnullable.as(not null)
		n_kwnullable.parent = self
	end