/// <summary>
/// Gets an enum describing a key's representation within the message.
/// </summary>
/// <param name="key">The key.</param>
/// <returns></returns>
private GribValueType NativeTypeForKey(string key)
{
int type = 0;
GribApiProxy.GribGetNativeType(_handle, key, out type);
return((GribValueType)type);
}