public bool Contains(T item) { return(s.Contains(item)); }
public static bool IsBasicAddressPartType(PostalAddressPartType partToCheck) { return(basicPartTypes.Contains(partToCheck)); }
public static bool IsFullAddressPartType(PostalAddressPartType partToCheck) { return(fullPartTypes.Contains(partToCheck)); }
bool ICollection <T> .Contains(T item) { lock (this) { return(set.Contains(item)); } }