arrow-fx / arrow.fx / Race9 / fold
inline fun <J> fold(ifA: (A) -> J, ifB: (B) -> J, ifC: (C) -> J, ifD: (D) -> J, ifE: (E) -> J, ifF: (F) -> J, ifG: (G) -> J, ifH: (H) -> J, ifI: (I) -> J): J
Do you like Arrow?
