human
1.3 observation_space
The observation space of an environment represents the number and types of observations that are provided to the reinforcement learning agent. For this example, we will be observe two values for each vehicle: its position and speed. Accordingly, we need a observation space that is twice the size of the number of vehicles in the network."
Please write code following the instructions in jupyter notebook style.

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Give me a code to 1?
assistant
#Here is code to 1.

class myEnv(myEnv):  # update my environment class

    @property
    def observation_space(self):
        return Box(
            low=0,
            high=float("inf"),
            shape=(2*self.initial_vehicles.num_vehicles,),
        )