/// <summary>
/// Returns an attribute set from the entry, consisting of only those
/// attributes matching the specified subtypes.
/// The getAttributeSet method can be used to extract only
/// a particular language variant subtype of each attribute,
/// if it exists. The "subtype" may be, for example, "lang-ja", "binary",
/// or "lang-ja;phonetic". If more than one subtype is specified, separated
/// with a semicolon, only those attributes with all of the named
/// subtypes will be returned. The LdapAttributeSet returned may be
/// empty if there are no matching attributes in the entry.
/// </summary>
/// <param name="subtype">
/// One or more subtype specification(s), separated
/// with semicolons. The "lang-ja" and
/// "lang-en;phonetic" are valid subtype
/// specifications.
/// </param>
/// <returns>
/// An attribute set from the entry with the attributes that
/// match the specified subtypes or an empty set if no attributes
/// match.
/// </returns>
public LdapAttributeSet GetAttributeSet(string subtype)
{
return(Attrs.GetSubset(subtype));
}