update cmd to cli

cookbook/pocketflow-cli-hitl/utils/call_llm.py

@@ -0,0 +1,24 @@
+from anthropic import Anthropic
+import os
+
+def call_llm(prompt: str) -> str:
+    client = Anthropic(api_key=os.environ.get("ANTHROPIC_API_KEY", "your-anthropic-api-key")) # Default if key not found
+    response = client.messages.create(
+        model="claude-3-haiku-20240307", # Using a smaller model for jokes
+        max_tokens=150, # Jokes don't need to be very long
+        messages=[
+            {"role": "user", "content": prompt}
+        ]
+    )
+    return response.content[0].text
+
+if __name__ == "__main__":
+    print("Testing Anthropic LLM call for jokes:")
+    joke_prompt = "Tell me a one-liner joke about a cat."
+    print(f"Prompt: {joke_prompt}")
+    try:
+        response = call_llm(joke_prompt)
+        print(f"Response: {response}")
+    except Exception as e:
+        print(f"Error calling LLM: {e}")
+        print("Please ensure your ANTHROPIC_API_KEY environment variable is set correctly.")