anchor.diff:           fetch_cookbook_versions/3,
            fetch_latest_cookbook_version/3,
            create_cookbook_version/3,
  -         delete_cookbook_version/2,
            fetch_latest_cookbook_versions/2,
            fetch_latest_cookbook_versions/3,
            fetch_latest_cookbook_recipes/2,
  
positive.code:          fetch_user/2,
           fetch_users/1,
           create_user/3,
           delete_user/2,
           count_user_admins/1,
  
           %% node ops
  
negative.code:          fetch_nodes/2,
           fetch_nodes/3,
           create_node/3,
           node_record_to_authz_id/2,
  
           %% role ops
           fetch_role/3,
           fetch_roles/2,
           create_role/3,
           %% role_record_to_authz_id/2,
  
           %% environment ops
           fetch_environment/3,
           fetch_environments/2,
           create_environment/3,
  
           %% client ops
           fetch_client/3,
           fetch_clients/2,
           create_client/3,
  
           %% data_bag ops
           fetch_data_bag/3,
           fetch_data_bags/2,
           create_data_bag/3,
  
           %% data_bag_item ops
           fetch_data_bag_item/4,
           fetch_data_bag_items/3,
           fetch_data_bag_item_ids/3,
           create_data_bag_item/3,
  
           %% cookbook_version ops
           cookbook_exists/3,
  