Hi, I’m new to prefect. Does prefect have subdag like @composite_solid in dagster, if yes can you please let me know the prefect term for it. (task calling other tasks)

You might be looking for something like

StartFlowRun

(https://docs.prefect.io/core/idioms/flow-to-flow.html#scheduling-a-flow-of-flows) which is a task that starts another flow run (and optionally waits for a result).