Update visualizer_app.py

visualizer_app.py

@@ -140,10 +140,16 @@ def client_instantiation(
         else:
             deployment_client = None
 
+            
         if project_client is not None:
             task_credentials_details = setup_task_credentials(project_client)
-        else:
+        elif deployment_client is not None:
             task_credentials_details = setup_task_credentials(deployment_client)
+        elif project_client is not None and deployment_client is not None:
+            task_credentials_details = setup_task_credentials(project_client)
+        else:
+            task_credentials_details = None
+            
     else:
         wx_credentials = None
         project_client = None
@@ -433,7 +439,7 @@ def active_client(client_selector):
 
 @app.cell
 def emb_model_selection(client, set_embedding_model_list):
-    if client is not None:
+    if client_instantiation_form.value and client is not None:
         model_specs = client.foundation_models.get_embeddings_model_specs()
         # model_specs = client.foundation_models.get_model_specs()
         resources = model_specs["resources"]
@@ -509,16 +515,22 @@ def embedding_model():
 
 @app.cell
 def emb_model_parameters(emb_model_max_tk):
-    from ibm_watsonx_ai.foundation_models import Embeddings
     from ibm_watsonx_ai.metanames import EmbedTextParamsMetaNames as EmbedParams
-
-    embed_params = {
-         EmbedParams.TRUNCATE_INPUT_TOKENS: emb_model_max_tk,
-         EmbedParams.RETURN_OPTIONS: {
-         'input_text': True
+    if client is not None:
+        embed_params = {
+             EmbedParams.TRUNCATE_INPUT_TOKENS: emb_model_max_tk,
+             EmbedParams.RETURN_OPTIONS: {
+             'input_text': True
+             }
          }
-     }
-    return Embeddings, embed_params
+    else:
+        embed_params = {
+             EmbedParams.TRUNCATE_INPUT_TOKENS: 128,
+             EmbedParams.RETURN_OPTIONS: {
+             'input_text': True
+             }
+         }      
+    return embed_params
 
 
 @app.cell
@@ -542,6 +554,7 @@ def emb_model_setup(embedding_model):
 
 @app.cell
 def emb_model_instantiation(Embeddings, client, emb_model, embed_params):
+    from ibm_watsonx_ai.foundation_models import Embeddings
     if client is not None:
         embedding = Embeddings(
              model_id=emb_model,