fun <I1, I2, I3, I4, O> (I1, I2, I3, I4) -> O.reverse(): (I4, I3, I2, I1) -> O fun <I1, I2, I3, I4, I5, O> (I1, I2, I3, I4, I5) -> O.reverse(): (I5, I4, I3, I2, I1) -> O fun <I1, I2, I3, I4, I5, I6, O> (I1, I2, I3, I4, I5, I6) -> O.reverse(): (I6, I5, I4, I3, I2, I1) -> O Returns a function where the argument order has been reversed.