```yaml
- task: 1ESLighthouseEng.PipelineArtifactCaching.RestoreAndSaveCacheV1.RestoreAndSaveCache@1
  inputs:
    keyfile: '**/yarn.lock, !**/node_modules/**/yarn.lock, !**/.*/**/yarn.lock'
    targetfolder: '**/node_modules, !**/node_modules/**/node_modules'
    vstsFeed: '$(ArtifactFeed)'
- script: |
    yarn install
  displayName: Install Dependencies
  condition: ne(variables['CacheRestored'], 'true'
```