Sorry do not understand what does that mean?
"Pairing of Votes - Procedure allowed in the Senate only, whereby a member, before the vote is taken, announces to the Senate that he or she has paired his or her vote with an opposing vote of an absent member. The two votes do not affect outcome of the final tally."
This is entirely a voluntary agreement, usually a matter of courtesy to a colleague of the opposite party who could attend and vote but prefers to be elsewhere for some reason.
The idea is that if neither votes, the result is the same as if the absent person attended and they both voted in opposite ways.