public abstract class DocumentContainer : DocumentBase, 
	[T:sprᧁ], [T:sprᧀ]

Public MustInherit Class DocumentContainer
	Inherits DocumentBase
	Implements [T:sprᧁ], [T:sprᧀ]

public ref class DocumentContainer abstract : public DocumentBase, 
	[T:sprᧁ], [T:sprᧀ]

[<AbstractClassAttribute>]
type DocumentContainer =  
    class
        inherit DocumentBase
        interface [T:sprᧁ]
        interface [T:sprᧀ]
    end