Stops the specified pipeline execution. You choose to either stop the pipeline execution by completing in-progress actions without starting subsequent actions, or by abandoning in-progress actions. While completing or abandoning in-progress actions, the pipeline execution is in a <code>Stopping</code> state. After all in-progress actions are completed or abandoned, the pipeline execution is in a <code>Stopped</code> state.

{
  "success": true,
  "data": {
    "id": "abc123",
    "created_at": "2025-01-01T00:00:00Z"
  }
}

{
  "success": false,
  "error": {
    "code": "VALIDATION_ERROR",
    "message": "Invalid request parameters"
  }
}