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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 get_sensors_summary(self):
 """ This returns a dict of sensor of the source and their values """

        sub_title_list = self.get_sensor_list()

        graph_vector_summary = OrderedDict()
        for graph_idx, graph_data in enumerate(self.last_measurement):
            val_str = str(round(graph_data, 1))
            graph_vector_summary[sub_title_list[graph_idx]] = val_str

        return graph_vector_summary