Prompt example extracted from DSPy Examples.
article_summary = dspy.Example(article= "This is an article.", summary= "This is a summary.").with_inputs("article")
input_key_only = article_summary.inputs()
non_input_key_only = article_summary.labels()
print("Example object with Input fields only:", input_key_only)
print("Example object with Non-Input fields only:", non_input_key_only)