def METHOD_NAME(self):
    """
    Returns:
    """
    response = requests.get(self.url + '/voltages', proxies=proxyDict)
    if response.status_code == 200:
        jData = json.loads(response.content.decode('UTF-8'))
        voltages = jData['val']
        print(voltages)
        self.ui.status_label.setText(str(response.status_code))
        # clear the plot display
        self.ui.resultsPlot.clear()
        # get the plot axis
        ax = self.ui.resultsPlot.get_axis()
        df = pd.DataFrame(data=voltages)
        df.fillna(0, inplace=True)
        df.plot(ax=ax, kind='bar')
        ax.axhline(0.9, c='r', alpha=0.7)
        ax.axhline(1.1, c='r', alpha=0.7)
        self.ui.resultsPlot.redraw()
    else:
        print('error', response)