What's the meaning of type 'd in q# - Stack Overflow

As shown in the picture above. What's the meaning of type 'd? What's type the return value of "Zipped" should be?

28 Security — An Introduction to Computer Networks, desktop edition 2.0.11

Citing Stack Overflow discussions - Meta Stack Exchange

Stacks and Overflows. When I was first learning to code…, by Vaidehi Joshi, basecs

What does Stack Overflow want to be when it grows up?

AI-generated answers temporarily banned on coding Q&A site Stack Overflow - The Verge

Am I a bad programmer if I search Stack Overflow instead of reading documentation and figuring out problems on my own? - Quora

Improving Stack Overflow question title generation with copying enhanced CodeBERT model and bi-modal information - ScienceDirect

Stack Overflow's Crisis Shows the Future of Online Data in an AI World

Making Sense of the Metadata: Clustering 4,000 Stack Overflow tags with BigQuery k-means - Stack Overflow

What is a Buffer Overflow, Attack Types and Prevention Methods

Net - Httplistener With HTTPS Support - Stack Overflow, PDF, Public Key Certificate

What does Stack Overflow want to be when it grows up?

Understanding stack overflow code quality: A recommendation of caution - ScienceDirect