Fix sksurgeryrendermodelslikecamera_demo.py to exit when you provide a file name to save to.
Your most recent change refactored the run_demo method into a class, but broke the exit condition. This is required for at least 3 projects. See here.
Also, I repeatedly have to fix PEP issues whereby there are not 2 lines between the import statements and the first class/function. Pylint is picking this up. Please clarify what it should be. Im doing 2 lines, as thats what PyCharm suggests.