anchor.diff:  |--------------------------------|----------------------------------------------------------------|
   | `BUILDKITE_ANALYTICS_KEY`      | a unique key for the build that initiated the Test Analytics run |
   | `BUILDKITE_ANALYTICS_URL`      | URL that links to the build                                    |
  -| `BUILDKITE_ANALYTICS_BRANCH`   | the branch or ref that this run is for                         |
  +| `BUILDKITE_ANALYTICS_BRANCH`   | the branch or reference that this run is for                         |
   | `BUILDKITE_ANALYTICS_SHA`      | the commit SHA for the head of the branch                      |
   | `BUILDKITE_ANALYTICS_NUMBER`   | the build number of the build                                  |
   | `BUILDKITE_ANALYTICS_JOB_ID`   | the id of a job within the build                               |
  
positive.code: |--------------|----------------------------------------------------------------|
  | `key`        | a unique key for the build that initiated the Test Analytics run |
  | `url`        | URL that links to the build                                    |
  | `branch`     | the branch or ref that this run is for                         |
  | `commit_sha` | the commit SHA for the head of the branch                      |
  | `number`     | the build number of the build                                  |
  | `job_id`     | the id of a job within the build                               |
  
negative.code: |--------------------------------|------------------------------------------------------------------------------------------|
  | `BUILDKITE_ANALYTICS_KEY`      | a unique key for the build that initiated the Test Analytics run<br />`BUILDKITE_BUILD_ID` |
  | `BUILDKITE_ANALYTICS_URL`      | URL that links to the build <br /> `BUILDKITE_BUILD_URL`                                 |
  | `BUILDKITE_ANALYTICS_BRANCH`   | the branch or reference that this run is for<br />`BUILDKITE_BRANCH`                           |
  | `BUILDKITE_ANALYTICS_SHA`      | the commit sha for the head of the branch<br />`BUILDKITE_COMMIT`                        |
  | `BUILDKITE_ANALYTICS_NUMBER`   | the build number of the build<br />`BUILDKITE_BUILD_NUMBER`                              |
  | `BUILDKITE_ANALYTICS_JOB_ID`   | the id of a job within the build<br />`BUILDKITE_JOB_ID`                                 |
  