Hi, I think there is a small typo in the sensor documentation for run status sensors. In particular, the sensor examples for slack messages on job success and job failure. The current code example for job success is shown below:

from dagster import run_status_sensor, RunStatusSensorContext, DagsterRunStatus


@run_status_sensor(run_status=DagsterRunStatus.SUCCESS)
def my_slack_on_run_success(context: RunStatusSensorContext):
    slack_client = WebClient(token=os.environ["SLACK_DAGSTER_ETL_BOT_TOKEN"])

    slack_client.chat_postMessage(
        channel="#alert-channel",
        message=f'Job "{context.dagster_run.job_name}" succeeded.',
    )

I think that the second argument for the chat_postMessage method should be

text

rather than

message

. I have checked the arguments used for

make_slack_on_run_failure_sensor

here, and that also uses

text

.

thanks for reporting! I'll post a fix