public virtual void RemoveAll(
	ICollection<TKey> keys
)

Public Overridable Sub RemoveAll ( 
	keys As ICollection(Of TKey)
)

public:
virtual void RemoveAll(
	ICollection<TKey>^ keys
)

abstract RemoveAll : 
        keys : ICollection<'TKey> -> unit 
override RemoveAll : 
        keys : ICollection<'TKey> -> unit