[omochi@omochi-iMac-PC43 warn]$ swift aaa.swift aaa.swift:16:9: error: cannot assign value of type '(@escaping (Int) -> Void) -> Void' to type '((Int) -> Void) -> Void' f = { (g) -> Void in ^~~~~~~~~~~~~~~~[omochi@omochi-iMac-PC43 warn]$ swift aaa.swift aaa.swift:16:9: error: cannot assign value of type '(@escaping (Int) -> Void) -> Void' to type '((Int) -> Void) -> Void' f = { (g) -> Void in ^~~~~~~~~~~~~~~~