SealableListTInsert - метод

public void Insert(
	int index,
	T item
)

Public Sub Insert ( 
	index As Integer,
	item As T
)

public:
virtual void Insert(
	int index, 
	T item
) sealed

abstract Insert : 
        index : int * 
        item : 'T -> unit 
override Insert : 
        index : int * 
        item : 'T -> unit