t1: node_id: 1 k: 'testvisible' v: 'yes' t2: node_id: 2 k: 'testused' v: 'yes' t3: node_id: 3 k: 'test' v: 'yes' t4: node_id: 4 k: 'test' v: 'yes' nv_t1: node_id: 15 k: 'testing' v: 'added in node version 3' nv_t2: node_id: 15 k: 'testing two' v: 'modified in node version 4' public_v_t1: node_id: 16 k: 'testvisible' v: 'yes'