Think of dumplings as burgers, you have beef, fish or vegan burgers.

A dumpling must have some fillings (beef, pork, lamb, fish, shrimps or vegan) that is wrapped in a dough sheet.

Xiao long bao is a specific type of dumpling with minced pork cooked in a steamer but you can also have steamed dumplings with other fillings, say "HAR GOWs" steamed shrimp dumplings or dumplings in soup (minced pork with chopped chives in broth) .