fix: update generate answernode

Author: VinciGit00

scrapegraphai/nodes/generate_answer_node.py

@@ -80,30 +80,20 @@ def execute(self, state: dict) -> dict:
 
         self.logger.info(f"--- Executing {self.node_name} Node ---")
 
-        # Interpret input keys based on the provided input expression
         input_keys = self.get_input_keys(state)
-        # Fetching data from the state based on the input keys
+        
         input_data = [state[key] for key in input_keys]
         user_prompt = input_data[0]
         doc = input_data[1]
 
-        # Initialize the output parser
         if self.node_config.get("schema", None) is not None:
-            output_parser = JsonOutputParser(pydantic_object=self.node_config["schema"])
-
-            # Use built-in structured output for providers that allow it
-            optional_modules = {"langchain_anthropic", "langchain_fireworks", "langchain_groq", "langchain_google_vertexai"}
-            if all(key in modules for key in optional_modules):
-                if isinstance(self.llm_model, (ChatOpenAI, ChatMistralAI, ChatAnthropic, ChatFireworks, ChatGroq, ChatVertexAI)):
-                    self.llm_model = self.llm_model.with_structured_output(
-                        schema = self.node_config["schema"],
-                        method="json_schema")
-            else:
-                if isinstance(self.llm_model, (ChatOpenAI, ChatMistralAI)):
-                    self.llm_model = self.llm_model.with_structured_output(
-                        schema = self.node_config["schema"],
-                        method="json_schema")
 
+            if isinstance(self.llm_model, (ChatOpenAI, ChatMistralAI)):
+                self.llm_model = self.llm_model.with_structured_output(
+                    schema = self.node_config["schema"],
+                    method="json_schema")
+            else:
+                output_parser = JsonOutputParser(pydantic_object=self.node_config["schema"])
 
         else:
             output_parser = JsonOutputParser()