/// <summary>Tests whether the specified <paramref name="key"/> starts with this Subspace's prefix, indicating that the Subspace logically contains <paramref name="key"/>.</summary>
/// <param name="subspace"/>
/// <param name="key">The key to be tested</param>
/// <exception cref="System.ArgumentNullException">If <paramref name="key"/> is null</exception>
public static bool Contains <TKey>([NotNull] this IFdbSubspace subspace, [NotNull] TKey key)
where TKey : IFdbKey
{
if (subspace == null)
{
throw new ArgumentNullException("subspace");
}
if (key == null)
{
throw new ArgumentNullException("key");
}
return(subspace.Contains(key.ToFoundationDbKey()));
}