| ⇢ | A | TestHeapsterEventJsonEncoder added | |
| ⇢ | A | TestHeapsterJsonEncoder added | 
| ⇢ | A | TestHeapsterJsonEncoder.testEncoder() added | |
| ⇢ | A | Encoder.format_tags_value() added | |
| ⇢ | A | TestHeapsterEventJsonEncoder.testEncoder() added | |
| ⇢ | A | TestHeapsterEventJsonEncoder.setUp() added | |
| ⇢ | A | TestHeapsterJsonEncoder.setUp() added | |
| A | ↘ | B | Encoder.format_tags() got worse |