sdk-py: added Cron search functionality

libs/sdk-py/langgraph_sdk/client.py

@@ -687,6 +687,17 @@
     async def delete(self, cron_id: str) -> None:
         """Delete a cron."""
         await self.http.delete(f"/runs/crons/{cron_id}")
+
+    async def list(
+        self, assistant_id: Optional[str], thread_id: Optional[str] = None
+    ) -> ThreadState:
+        """Get a list of all the cron jobs."""
+        if thread_id:
+            return await self.http.get(f"/threads/{thread_id}/runs/crons")
+        elif assistant_id:
+            return await self.http.get(f"/assistants/{assistant_id}/runs/crons")
+        else:
+            return await self.http.get(f"runs/crons")
 
 
 def _get_api_key(api_key: Optional[str] = None) -> Optional[str]: