/// <summary>
/// Returns a hash code for this instance.
/// </summary>
/// <returns>
/// A hash code for this instance, suitable for use in hashing algorithms and data structures like a hash table.
/// </returns>
public override int GetHashCode()
{
return(this.flatIdentifierRepresentations.Aggregate(
0,
(current, pair) => EqualityHelper.GetUnorderedHashCode(current, pair.Value.GetHashCode())));
}