i can add the environment variables in the scheduler definition

return ScheduleDefinition(
        name="sample",
        cron_schedule="0 6,18 * * *",
        pipeline_name="demo",
        environment_dict=pipeline_config,
        environment_vars={
            key: os.environ.get(key)
            for key in [
                'KEY1',
                'KEY2'
            ]
            if key in os.environ
        }
    )