This is the ValueSet that contains all the codes in Attester Role (http://hl7.org/fhir/us/pacio-adi/ValueSet/ADIAttesterRoleTypeVS) and Attester Role (http://hl7.org/fhir/us/pacio-adi/ValueSet/ADIAttesterRoleTypeVS). E.g. what you have to deal with if you get resources containing codes in either of them