How do I connect iPad Pro to a laptop?

Assuming that you have a recent iPad Pro that features a USB-C connector, you simply require a USB Type A to USB-C cable. These are readily available from good computer stores. Apple market suitable cables; here is one from Mophie:

• mophie USB-A Cable with USB-C Connector (1 m)

https://store.apple.com/uk/xc/product/HN892ZM/A

Yes, a cable like this one:--> https://www.apple.com/shop/product/HN8A2ZM/A/mophie-usb-a-cable-with-usb-c-connector-2-m?fnode=20b9c59b092fa93ff8d424a6f7bfdc283911fa679401e43a696962445bda14b3d7c368fe9cc9f0a44978c5284df49f1dfae0a50a2a03f47148b0238294548deab6e1ee0600c7a46cbae167357ddb0def6f919f6bf3dc48c060aa5a303f431734cdea711ed82f7582f526bc4304f285c3

Regards

Giulio