[SerializableAttribute]
public struct Interval<T> : IEquatable<Interval<T>>, 
	IComparable<Interval<T>>
where T : Object, IComparable<T>

<SerializableAttribute>
Public Structure Interval(Of T As {Object, IComparable(Of T)})
	Implements IEquatable(Of Interval(Of T)), IComparable(Of Interval(Of T))

[SerializableAttribute]
generic<typename T>
where T : Object, IComparable<T>
public value class Interval : IEquatable<Interval<T>>, 
	IComparable<Interval<T>>

[<SealedAttribute>]
[<SerializableAttribute>]
type Interval<'T when 'T : Object and IComparable<'T>> =  
    struct
        interface IEquatable<Interval<'T>>
        interface IComparable<Interval<'T>>
    end