interface Proc18[A0,A1,A2,A3,A4,A5,A6,A7,A8,A9,A10,A11,A12,A13,A14,A15,A16,A17]
	super Proc
	fun call(a0: A0,a1: A1,a2: A2,a3: A3,a4: A4,a5: A5,a6: A6,a7: A7,a8: A8,a9: A9,a10: A10,a11: A11,a12: A12,a13: A13,a14: A14,a15: A15,a16: A16,a17: A17) is abstract
end