Send a dictionary of variables associated with the selected run.

    Usage description:
    This function is usually called to get and display the list of runs associated with a selected project available
    in the database for the user to view.

    :return: JSON, {<int_keys>: <run_name>}

def get_variables():
    """
    Send a dictionary of variables associated with the selected run.

    Usage description:
    This function is usually called to get and display the list of runs associated with a selected project available
    in the database for the user to view.

    :return: JSON, {<int_keys>: <run_name>}
    """
    assert request.method == "POST", "POST request expected received {}".format(request.method)
    if request.method == "POST":
        try:
            selected_run = request.form["selected_run"]
            variables = utils.get_variables(selected_run)

            # Reset current_index when you select a new run
            variable_names = variables.items()
            global current_index
            current_index = {}
            if len(current_index) < 1:
                for _, v_n in variable_names:
                    current_index["{}".format(v_n)] = 0

            return jsonify(variables)
        except Exception as e:
            logging.error(e)
    return jsonify({"0": "__EMPTY"})