@type t() ::
  %Procore.Model.RestV20CompaniesCompanyIdProjectsProjectIdWorkflowsInstancesIdGet200ResponseDataResponsibleGroupMembershipsInner{
    assignees:
      [
        Procore.Model.RestV20CompaniesCompanyIdProjectsProjectIdWorkflowsInstancesIdGet200ResponseDataResponsibleGroupMembershipsInnerAssigneesInner.t()
      ]
      | nil,
    responsible_group_uuid: String.t() | nil
  }