/// <summary>
/// Sets the key's value.
/// </summary>
/// <param name="newValue">The new value.</param>
public virtual void AsDouble(double newValue)
{
string valueKey = BuildTokenForDouble();
AssertTypeSafe(valueKey, NativeTypeForKey(valueKey), GribValueType.Double);
GribApiProxy.GribSetDouble(_handle, valueKey, newValue);
}