If it was mine, I would keep it along with the lines. If you do have a trashed pump then you would minimally need to flush out all of the lines, high pressure and low pressure and maybe drop the tank and clean that too. Some wouldn't risk it and just replace everything.
Pull off a line and pump out some fuel into a clean container and see if there is any metal particals. It would look like tiny shinny glitter like peaces if the pump failed and sent metal throughout