Talertbyid              Queries active and upcoming times for a
                        particular alert.
Talerts                 Query all active and upcoming alerts.
Tdailymetrics           Query daily performance statistics.
Theadways               To get headways and train arrive times for a
                        given station/route/direction in a certain time
                        window.. Returns a list of headways at an
                        origin station during a particular time period
                        on a particular route.
Theadwaysperformance    Function to return performance data based on
                        headways surrounding a given passenger's
                        arrival time at a station on a given route.
Tmetrics                Query real-time performance statistics.
Tpredictionsbyroute     Query predictions by route
Tpredictionsbystop      Query predictions by stop
Tpredictionsbytrip      Query predictions by trip
Troutes                 Query all T routes
Troutesbystop           Query all routes at a stop
Tschedulebyroute        Query the schedule by route
Tschedulebystop         Query schedule by stop
Tschedulebytrip         Query schedule by trip
Tservertime             Queries the current MBTA API server time.
Tstopsbylocation        Query stops by goegraphic location
Tstopsbyroute           Query stops by route
Tstopslookup            Search for information on a stop with a given
                        name. Useful when stop_id is not known.
Ttravelperformance      Query performance statistics for many trips
                        contained in a dataframe.
Ttraveltimes            Query travel times and travel time performance
Tvehiclesbyroute        Query vehicles by a route
Tvehiclesbytrip         Query vehicles by a particular trip.
routes                  Routes and respective information for the MBTA
                        system
