Yes, I believe it is normal- here's a little info on it:
"During surgery, small incisions are made in the abdomen. A harmless gas is then used to lift the abdominal wall away from the internal organs. The laparscope is inserted to view the inside of the abdomen. Surgical instruments are inserted to remove the gallbladder. Small clips close off the bile duct and blood vessels to prevent bleeding and bile leaks. The gallbladder is then detached from the liver. The clips are made of metal (titanium) or plastic that do not harm the body; and they are left in place. The gallbladder is then removed and carefully lifted out through the incision. Bile will now flow directly from the liver to the small intestine."
https://www.jacksonsurgical.com/gallbladder-surgery/