Update ZeroShotAgent and OpenAIComponent

src/backend/langflow/components/agents/ZeroShotAgent.py

@@ -3,9 +3,7 @@ from langflow import CustomComponent
 from langchain.agents import ZeroShotAgent
 from langchain_core.tools import BaseTool
 from typing import List, Optional
-from langflow.field_typing import (
+from langflow.components.chains.LLMChain import LLMChain
-    BaseLanguageModel,
-)
 
 class ZeroShotAgentComponent(CustomComponent):
     display_name = "ZeroShotAgent"
@@ -21,9 +19,9 @@ class ZeroShotAgentComponent(CustomComponent):
 
     def build(
         self,
-        llm: BaseLanguageModel,
+        llm: LLMChain,
         tools: List[BaseTool],
         prefix: Optional[str] = "Answer the following questions as best you can. You have access to the following tools:",
         suffix: Optional[str] = "Begin!\n\nQuestion: {input}\nThought:{agent_scratchpad}",
     ) -> ZeroShotAgent:
-        return ZeroShotAgent(llm=llm, tools=tools, prefix=prefix, suffix=suffix)
+        return ZeroShotAgent(llm_chain=llm, tools=tools, prefix=prefix, suffix=suffix)

src/backend/langflow/components/llms/OpenAI.py

@@ -42,10 +42,12 @@ class OpenAIComponent(CustomComponent):
         max_tokens: Optional[int] = 256,
         model_kwargs: Optional[Dict] = None,
         model_name: Optional[str] = "text-davinci-003",
-        openai_api_base: Optional[str] = "https://api.openai.com/v1",
+        openai_api_base: Optional[str] = "",
         openai_api_key: str = "",
         temperature: Optional[float] = 0.7,
     ) -> OpenAI:
+        if(not openai_api_base):
+            openai_api_base = "https://api.openai.com/v1"
         return OpenAI(
             max_tokens=max_tokens,
             model_kwargs=model_kwargs or {},