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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def command(self, vehicle_id, name, data=None, wake_if_asleep=True):
 """Post name command to the vehicle_id. Parameters vehicle_id : string Identifier for the car on the owner-api endpoint. Confusingly it is not the vehicle_id field for identifying the car across different endpoints. https://tesla-api.timdorr.com/api-basics/vehicles#vehicle_id-vs-id name : string Tesla API command. https://tesla-api.timdorr.com/vehicle/commands data : dict Optional parameters. wake_if_asleep : bool Function for underlying api call for whether a failed response should wake up the vehicle or retry. Returns ------- dict Tesla json object. """

        data = data or {}
        return self.post(vehicle_id, 'command/%s' % name, data,
                         wake_if_asleep=wake_if_asleep)