/// <summary>
/// Gets the key's value in bytes.
/// </summary>
/// <returns></returns>
public byte[] AsBytes()
{
AssertTypeSafe(GribValueType.Bytes);
SizeT sz = 0;
GribApiProxy.GribGetSize(_handle, Key, ref sz);
byte[] bytes = new byte[sz];
GribApiProxy.GribGetBytes(_handle, Key, bytes, ref sz);
return(bytes);
}