public bool ContainsKey(string key)
        {
            bool ret = FiftyOneDegreesPatternV3PINVOKE.MapStringString_ContainsKey(swigCPtr, key);

            if (FiftyOneDegreesPatternV3PINVOKE.SWIGPendingException.Pending)
            {
                throw FiftyOneDegreesPatternV3PINVOKE.SWIGPendingException.Retrieve();
            }
            return(ret);
        }