How to add Vix and Turbulence to the states in Portfolio allocation ??

[WELZAY]

I want to add Vix and Turbulence to the states? I have a user defined feature that is mean return this way, but not sure if it is correct. Can anyone help?
self.observation_space = spaces.Box(low=-np.inf, high=np.inf, shape=(self.state_space + len(self.tech_indicator_list) + 1, self.state_space))

    self.data = self.df.loc[self.day, :]  # basically all the columns in our data from the current day
    self.covs = self.data['cov_list'].values[0]  # Extract the covariance matrix
    self.mean_return = self.data['mean_return'].values[0]
    self.state = np.append(np.array(self.covs),
                           [self.data[tech].values for tech in self.tech_indicator_list] + [self.mean_return],  #the structure of the sate
                           axis=0)