%contextDisown()

Aliases%contextDisown( )
Parameters[integer @contextId]

    Disowns the current context, or if @contextId is set then disowns the
associated context (if valid). If an associated context is disowned
then 1 is returned; otherwise 0 is returned. A context that is disowned
may live beyond the existence of the entity that originally owned it.
As such it can live forever.