/** @see railo.runtime.type.Collection#containsKey(railo.runtime.type.Collection.Key) */
 public boolean containsKey(Key key) {
   return column.containsKey(key);
 }
 /** @see railo.runtime.type.Collection#containsKey(java.lang.String) */
 public boolean containsKey(String key) {
   return column.containsKey(key);
 }