initial working with ollama

activities.py

@@ -0,0 +1,19 @@
+from temporalio import activity
+from ollama import chat, ChatResponse
+
+class OllamaActivities:
+    @activity.defn
+    def prompt_ollama(self, prompt: str) -> str:
+        model_name = 'mistral'
+        messages = [
+            {
+                'role': 'user',
+                'content': prompt
+            }
+        ]
+
+        # Call ollama's chat function
+        response: ChatResponse = chat(model=model_name, messages=messages)
+        
+        # Return the model's text response
+        return response.message.content