anchor.diff:      "name": "My Pipeline",
       "slug": "my-pipeline",
       "repository": "git@github.com:acme-inc/my-pipeline.git",
  +    "branch_configuration": null,
  +    "default_branch": "master",
       "provider": {
         "id": "github",
         "webhook_url": "https://webhook.buildkite.com/deliver/xxx",
  
positive.code:   <tr><th><code>description</code></th><td>The pipeline description. <p class="Docs__api-param-eg"><em>Example:</em> <code>":package: A testing pipeline"</code></p></td></tr>
    <tr><th><code>env</code></th><td>The pipeline environment variables. <p class="Docs__api-param-eg"><em>Example:</em> <code>{"KEY":"value"}</code></p></td></tr>
    <tr><th><code>provider_settings</code></th><td>The source provider settings. <p class="Docs__api-param-eg"><em>Example:</em> <code>{ "publish_commit_status": true, "build_pull_request_forks": true }</code></p></td>
    <tr><th><code>skip_queued_branch_builds</code></th><td>Skip intermediate builds. When a new build is created on a branch, any previous builds that haven't yet started on the same branch will be automatically marked as skipped.<p class="Docs__api-param-eg"><em>Example:</em> <code>true</code><br><em>Default:</em> <code>false</code></p></td>
    <tr><th><code>skip_queued_branch_builds_filter</code></th><td>A <a href="/docs/pipelines/branch-configuration#branch-pattern-examples">branch filter pattern</a> to limit which branches intermediate build skipping applies to. <p class="Docs__api-param-eg"><em>Example:</em> <code>"!master"</code><br><em>Default:</em> <code>null</code></p></td>
    <tr><th><code>cancel_running_branch_builds</code></th><td>Cancel intermediate builds. When a new build is created on a branch, any previous builds that are running on the same branch will be automatically cancelled.<p class="Docs__api-param-eg"><em>Example:</em> <code>true</code><br><em>Default:</em> <code>false</code></p></td>
  
negative.code:   "description": "This pipeline is amazing! :tada:",
    "slug": "my-pipeline",
    "repository": "git@github.com:acme-inc/my-pipeline.git",
    "branch_configuration": null,
    "default_branch": "master",
    "provider": {
      "id": "github",
      "webhook_url": "https://webhook.buildkite.com/deliver/xxx",
  