refactored code and imported inspect to test all functions in all files
refactored code and imported inspect to test all functions in all files

johncoleman83/AirBnB_clone_v2,johncoleman83/AirBnB_clone_v2,johncoleman83/AirBnB_clone_v2,johncoleman83/AirBnB_clone_v2,johncoleman83/AirBnB_clone_v2