@Marvin is there a prefect construct similar to airflows ExternalTaskSensor? I want to have a flow wait or pause until it makes sure that a different flow is not currently running.

In Prefect 3.x, you can achieve behavior similar to Airflow's

ExternalTaskSensor

using a combination of flow state management and orchestration. Prefect provides constructs to pause and resume flow runs, which can help you wait for another flow to complete or ensure it's not currently running. 1. Pausing and Resuming Flows: - You can use

pause_flow_run

and

resume_flow_run

to control the execution of a flow. This can be useful to wait for external conditions or other flows. - Documentation on these functionalities is not directly available in the excerpts, but you can explore these functions in the Prefect API. 2. State Management: - Use the Prefect client to check the state of a flow run. If you need to wait until another flow is not running, you can poll the state of that flow using the client. 3. Flow Control: - Prefect allows you to manage flow execution using state transitions and orchestrating tasks based on conditions, which can be used to mimic the waiting behavior. For more detailed implementation, you can explore the Prefect API documentation and functions like

pause_flow_run

and

resume_flow_run

here. If you're looking for a more specific implementation or examples, let me know, and I can assist further.