public virtual Label Label(Predicate <Label> predicate)
 {
     return(AllElements.Label(predicate));
 }
 public virtual Label Label(Regex elementId)
 {
     return(AllElements.Label(elementId));
 }
 public virtual Label Label(Constraint findBy)
 {
     return(AllElements.Label(findBy));
 }
 public virtual Label Label(string elementId)
 {
     return(AllElements.Label(elementId));
 }