fix(func): expose input / output types in pregel to support studio (#811

)
langchain-ai · Jan 29, 2025 · 024e8fb · 024e8fb
1 parent 4bee8fd
commit 024e8fb
Showing 1 changed file with 6 additions and 0 deletions.
diff --git a/libs/langgraph/src/pregel/index.ts b/libs/langgraph/src/pregel/index.ts
@@ -217,6 +217,12 @@ export class Pregel<
     return "LangGraph";
   }
 
+  /** @internal Used for type inferrence */
+  declare "~InputType": InputType;
+
+  /** @internal Used for type inferrence */
+  declare "~OutputType": OutputType;
+
   // Because Pregel extends `Runnable`.
   lc_namespace = ["langgraph", "pregel"];