Used by the lease holder to indicate that it is no longer interested in the resource 
            or information held by the lease.
            
 Declaration Syntax
 Declaration Syntax| C# | Visual Basic | Visual C++ | J# | 
void Cancel()
Sub Cancel
void Cancel()
void Cancel()
 Exceptions
 Exceptions| Exception | Condition | 
|---|---|
| UnknownLeaseException | The lease being cancelled is unknown to the lease grantor. | 
