/// <summary>
/// Gets the child node associated with the specified key.
/// </summary>
/// <param name="childKey">The key of the child node.</param>
/// <param name="child">Returns the child node associated with the specified key, if the key is found; otherwise, <c>null</c>.</param>
/// <returns></returns>
public bool TryGetChild(TKey childKey, out DTree <TKey, TValue> child)
{
if (_children.IsNullOrEmpty())
{
child = null;
return(false);
}
else
{
return(_children.TryGetValue(childKey, out child));
}
}