Get attributes ranges
GET /rest/widgets/product/get_attributes_ranges/?format=api
{
"max_width": 9480,
"min_width": 95,
"max_height": 8110.0,
"min_height": 80.0,
"max_seat_height": 1130.0,
"min_seat_height": 34.5,
"max_foot_print": 25.0,
"min_foot_print": 0.0
}