update init_image param to take None as an argument instead of erroring in a lot of cases people asking how to set it when initially it is set to None but doesn't fail because the param wants a string but default is a type None wich leads to confusion about entering None in if they set one and do not want it anymore
update init_image param to take None as an argument instead of erroring in a lot of cases people asking how to set it when initially it is set to None but doesn't fail because the param wants a string but default is a type None wich leads to confusion about entering None in if they set one and do not want it anymore