     let handleDuplicates = (Key.self == String.self)
     
     let tmpResult = Dictionary(_unsafeUninitializedCapacity: numElems,
-      allowingDuplicates: handleDuplicates) { (keys, vals, outCount) in
+      allowingDuplicates: handleDuplicates) { keys, vals in
       
       let objectKeys = UnsafeMutableRawPointer(mutating:
         keys.baseAddress!).assumingMemoryBound(to: AnyObject.self)

      let handleDuplicates = (Key.self == String.self)
      
      result = Dictionary(_unsafeUninitializedCapacity: numElems,
        allowingDuplicates: handleDuplicates) { (keys, vals, outCount) in
        
        let objectKeys = UnsafeMutableRawPointer(mutating:
          keys.baseAddress!).assumingMemoryBound(to: AnyObject.self)

        _forceBridge(objectKeys, count: numElems, to: Key.self)
        _forceBridge(objectVals, count: numElems, to: Value.self)
        
        return numElems
      }
    }
  }
