MQL5 ReferenceStandard LibraryGeneric Data CollectionsCRedBlackTree<T>Contains AddCountRootContainsComparerTryGetMinTryGetMaxCopyToClearRemoveRemoveMinRemoveMaxFindFindMinFindMax Contains Determines whether the red–black tree contains an element with the specified value. bool Contains( T item // the search value ); Parameters item [in] The searched value. Return Value Returns true if an element with the specified value is found in the red–black tree, or false otherwise. Root Comparer