Missing argument for parameter #1 in call

[speedoholic]

The following line of code in PullToRefreshConst.swift file is causing compile time error when Swift 4.1 is being used as per Build Settings:

self.refreshCompletion?()

Missing argument for parameter #1 in call

Insert '<#Void#>'

[speedoholic]

Replace ((Void) -> Void)? with (() -> (Void))? = nil

After replacement-
Line 29:
fileprivate var refreshCompletion: (() -> (Void))? = nil

Line 81:
public init(options: PullToRefreshOption, frame: CGRect, refreshCompletion :(() -> (Void))? = nil, down:Bool=true) {