/// <summary>
/// Returns true if this <see cref="Skill"/> is a child of
/// the given Skill.
/// </summary>
/// <param name="skill"></param>
/// <returns></returns>
public bool IsChildOf(Skill skill)
{
return(parents.Contains(skill));
}
/// <summary>
/// Removes the given <see cref="Skill"/> from the list of
/// parent Skills, if it is present.
/// </summary>
/// <param name="skill"></param>
public void RemoveParent(Skill skill)
{
parents.Remove(skill);
}
