GETRetrieve a user (by external reference)Retrieve a user by the externalReference your system assigned when creating the user via POST /api/users/by-reference. Matching is case-insensitive and scoped to your partner account.→GETRetrieve a summary of all check-ins for a userRetrieve a summary of all check-ins for a user. This includes mileage, condition and service check-ins.→GETRetrieve a user (by id)Retrieve a user by passing in the id.→