def begin(self):
exec_payload = ExecutionQueryPayload()<EOL>exec_payload.execution_start_time = int(time.time() * <NUM_LIT:1000>)<EOL>self.execution_start_time = exec_payload.execution_start_time<EOL>exec_payload.guid = self.execution_guid<EOL>exec_payload.username = getpass.getuser()<EOL>self.testcase_manager.insert_execution_data(exec_payload)<EOL>
At the start of the run, we want to record the test
            execution information in the database.