     convenience init(version : UInt64, pageSize: Int, pairs: [(T,U)]) throws {
         var remainingBytes = pageSize - cookieHeaderSize
         for (key, value) in pairs {
-            let serializedSize  = key.serializedSize + value.serializedSize
+            let serializedSize = key.serializedSize + value.serializedSize
             if remainingBytes < serializedSize {
                 throw DatabaseError.SerializationError("Tree leaf node overflow")
             }

        
        var next = iter.peek()
        while next != nil {
            let serializedSize  = next!.0.serializedSize + next!.1.serializedSize
            if remainingBytes < serializedSize {
                break
            }

//                print("- there is space in the \(status) internal for the add")
                
                try node.addPairs(newPairs, replacingIndex: index, totalCount: totalCount)
                let max         = node.max!
                
                let internalNode : TreeNode<T,U> = .internalNode(node)
                if case .dirty(let pid) = status {
