model changed to Haiku 3.5 for query re=write

utilities/invoke_models.py

@@ -58,9 +58,8 @@ def invoke_model_mm(text,img):
     #print(response_body)
     return response_body.get("embedding")
 
-def invoke_llm_model(input,is_stream,model_id):
-    if(model_id is None):
-        model_id = "us.anthropic.claude-3-5-haiku-20241022-v1:0"
+def invoke_llm_model(input,is_stream,model_id="us.anthropic.claude-3-5-haiku-20241022-v1:0"):
+   
     if(is_stream == False):
         response = bedrock_runtime_client.invoke_model( 
             modelId= model_id,#"us.anthropic.claude-3-5-haiku-20241022-v1:0",#"anthropic.claude-3-5-haiku-20241022-v1:0",#"anthropic.claude-3-5-sonnet-20240620-v1:0",,
@@ -128,9 +127,8 @@ def read_from_table(file,question):
     agent_res = agent.invoke(question)['output']
     return agent_res
     
-def generate_image_captions_llm(base64_string,question,model_id):
-    if(model_id is None):
-        model_id = "us.anthropic.claude-3-5-haiku-20241022-v1:0"
+def generate_image_captions_llm(base64_string,question,model_id="us.anthropic.claude-3-5-haiku-20241022-v1:0"):
+    
    
     response = bedrock_runtime_client.invoke_model( 
             modelId= model_id,