Closure with multiple parameters compilation error

[SeRG1k17]

// sourcery: AutoMockable
public protocol TestProtocol {

    func method(value: String, handler: ((Error, String) -> Void)?) -> Int
}

Mock:

public class TestProtocolMock: TestProtocol {

    public init() {}



    //MARK: - method

    public var methodValueStringHandlerErrorStringVoidIntCallsCount = 0
    public var methodValueStringHandlerErrorStringVoidIntCalled: Bool {
        return methodValueStringHandlerErrorStringVoidIntCallsCount > 0
    }
    public var methodValueStringHandlerErrorStringVoidIntReturnValue: Int!
    public var methodValueStringHandlerErrorStringVoidIntClosure: ((String, ((Error, String) -> Void)?) -> Int)?

// Extra Bracket here
    public func method(value: String, handler: (((Error, String) -> Void)?) -> Int {
        methodValueStringHandlerErrorStringVoidIntCallsCount += 1
        if let methodValueStringHandlerErrorStringVoidIntClosure = methodValueStringHandlerErrorStringVoidIntClosure {
            return methodValueStringHandlerErrorStringVoidIntClosure(value, handler)
        } else {
            return methodValueStringHandlerErrorStringVoidIntReturnValue
        }
    }


}

As you can see Sourcery added one bracket "(" in closure. This bug is reproducible only with multiple closure parameters