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+| Rank | actor_login | location | robot info | Robot developer | Involved areas | Function description | Related Links for more info /
+| :-----| ----: | :----: | :-----| ----:  | :-----| ----: | :----: |
+| 1 | dependabot[bot] | San Francisco, CA | Automated dependency updates built into GitHub |  | Upgrading  dependency | pulling down your dependency files and looking  for any outdated or insecure requirements. | https://github.com/dependabot https://dependabot.com
+| 2 | dependabot-preview[bot] |  |  | github | Upgrading  dependency；Security Monitoring | Great PRs that stay up-to-date;Compatibility scores for each update;Security advisories handled automatically;Simple getting started flow |  https://github.com/marketplace/dependabot-preview
+| 3 | renovate[bot] |  |  | Renovate Bot | updating dependencies;customing grouping and schedules | Automatically update dependencies;Supports a multitude of languages ;Extensive configurability;Supports shared presets as code | https://github.com/marketplace/renovate https://github.com/renovatebot
+| 4 | github-learning-lab[bot] |  |  | github | using guide | helping  users learn how to use GitHub；gettig  interactive instructions and activities by the bot | https://github.com/marketplace/github-learning-lab
+| 5 | GitHub Actions |  | Automate your workflow from idea to production |  |automating workflow | automating all your software workflows, now with world-class CI/CD. Build, test, and deploy your code right from GitHub |  https://github.com/features/actions
+| 6 | Codecov |  | Empower developers with tools to improve code quality and testing. |  | improving code quality and testing | group, merge, archive and compare coverage reports. |  https://github.com/github-actions-workflows https://github.com/features/actions
+| 7 | pyup.io bot |  |  |  | updating dependences | Updating  all Python dependency files of the project through Pull Requests on GitHub/GitLab. |  https://github.com/pyup-bot https://pyup.io/docs/
+| 8 | bot-monkey-1 |  | MonkeyBot is a general purpose Discord Bot that was created for the needs of the Monkey Gamers community |  | Gamers Community service | Welcoming new users;Get updates from various feeds (ATOM/RSS);(Self) role assignments;Scheduled announcements |  https://github.com/MarkusKgit/MonkeyBot https://github.com/bot-monkey-3?tab=overview&from=2020-11-01&to=2020-11-30
+| 9 | sonarcloud[bot] |  | the leading product for Continuous Code Quality & Code Security online, totally free for open-source projects.  |  | improving code quality and secutrity | supporting all major programming languages;detecting bugs, vulnerabilities and code smells |  https://github.com/marketplace/actions/sonarcloud-scan
+| 10 | Greenkeeper[Snynk] |  |  |  | Project risk monitoring | knowing when your project’s dependency updates break your code | https://greenkeeper.io/docs.html https://github.com/greenkeeperio/greenkeeper