I want to import photos from a USB connected iPhone

Hi All,
I have been scouring the internet for some information on how to get access to the photo folder on a USB connected iPhone. I know it doesnt show up as a drive, and I don’t want to play with scripts and things to mount it. But I know other apps like photos and image capture can read from them so was wondering if anyone has any information, sites, tutorials, or even just a point in the right direction.
Not sure if iokit will work, or AVFoundation or something else. Has anyone done this successfully?