51.
What is the purpose of the --document flag when installing gems using Bundler?

52.
What does the gem search -r keyword command do in Ruby?

53.
What is the purpose of the gem uninstall gem_name -I command in Ruby?

54.
What does the gem outdated command do in Ruby?

56.
What is the purpose of the --no-ri and --no-rdoc flags when installing gems using Bundler?