TypeScript 2.3 compatibility fix.
TypeScript 2.3 compatibility fix.

RyanLamanskyConnexions/open-travel,RyanLamansky/open-travel,RyanLamansky/open-travel,RyanLamanskyConnexions/open-travel,ConnexionsTravel/open-travel,ConnexionsTravel/open-travel,RyanLamansky/open-travel,RyanLamansky/open-travel,RyanLamanskyConnexions/open-travel,ConnexionsTravel/open-travel,ConnexionsTravel/open-travel,RyanLamanskyConnexions/open-travel