Added HuggingFaceHub and fixed the stream parameter + added summarization as a task option

src/backend/langflow/config.yaml

@@ -55,6 +55,7 @@ llms:
   - LlamaCpp
   - CTransformers
   - Cohere
+  - HuggingFaceHub
 memories:
   - ConversationBufferMemory
   - ConversationSummaryMemory

src/backend/langflow/interface/utils.py

@@ -44,7 +44,11 @@ def try_setting_streaming_options(langchain_object, websocket):
         langchain_object.llm_chain, "llm"
     ):
         llm = langchain_object.llm_chain.llm
-    if isinstance(llm, BaseLanguageModel) and hasattr(llm, "streaming"):
+
+    if isinstance(llm, BaseLanguageModel):
+        if hasattr(llm, "streaming"):
             llm.streaming = True
+        if hasattr(llm, "stream"):
+            llm.stream = True
 
     return langchain_object

src/backend/langflow/template/frontend_node/llms.py

@@ -34,7 +34,11 @@ class LLMFrontendNode(FrontendNode):
             field.required = True
             field.show = True
             field.is_list = True
-            field.options = ["text-generation", "text2text-generation"]
+            field.options = [
+                "text-generation",
+                "text2text-generation",
+                "summarization"
+            ]
             field.advanced = True
 
         if display_name := display_names_dict.get(field.name):