curl --request PATCH \
  --url https://api.example.com/v1/crm/inventories/sets/{set_id}/items/{id}/ \
  --header 'Content-Type: application/json' \
  --data '
{
  "id": 123,
  "count": 123,
  "group_id": 123,
  "alternative": 123,
  "required": true
}
'

{
  "count": 123,
  "group_id": 123,
  "group_name": "<string>",
  "group_unique_id": "<string>",
  "group_category": 123,
  "group_image": "<string>",
  "inventories_count": 0,
  "inventories_free": 0,
  "id": 123,
  "alternative": 123,
  "required": true
}