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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_current_executions(self):
 """Get all current running executions. :return: Returns a set of running Executions or empty list. :rtype: list raises ValueError in case of protocol issues :Seealso: - apply_actions - launch_action_group - get_history """

        header = BASE_HEADERS.copy()
        header['Cookie'] = self.__cookie

        request = requests.get(
            BASE_URL +
            'getCurrentExecutions',
            headers=header,
            timeout=10)

        if request.status_code != 200:
            self.__logged_in = False
            self.login()
            self.get_current_executions()
            return

        try:
            result = request.json()
        except ValueError as error:
            raise Exception(
                "Not a valid result for" +
                "get_current_executions, protocol error: " + error)

        if 'executions' not in result.keys():
            return None

        executions = []

        for execution_data in result['executions']:
            exe = Execution(execution_data)
            executions.append(exe)

        return executions