Add sentiment_analysis.py example for analyzing sentiment of text

examples/sentiment_analysis.py

@@ -0,0 +1,19 @@
+from _context import sm
+
+from pydantic import BaseModel
+from typing import Literal
+
+
+class SentimentAnalysis(BaseModel):
+    sentiment: Literal["positive", "negative", "neutral"]
+    confidence: float
+
+
+print(
+    sm.generate_data(
+        prompt="Analyze the sentiment of the following text:\n\n'The product arrived late and was broken. Worst purchase ever!'",
+        llm_provider="openai",
+        llm_model="gpt-4o",
+        response_model=SentimentAnalysis,
+    )
+)