code: def install(packages, repos=None, yes=None, options=None):
      
      manager = MANAGER
      if options is None:
          options = []
      elif isinstance(options, six.string_types):
          options = [options]
      if not isinstance(packages, six.string_types):
          packages = " ".join(packages)
      if repos:
          for repo in repos:
              options.append('--enablerepo=%(repo)s' % locals())
      options = " ".join(options)
      if isinstance(yes, str):
          run_as_root('yes %(yes)s | %(manager)s %(options)s install %(packages)s' % locals())
      else:
          run_as_root('%(manager)s %(options)s install %(packages)s' % locals())
docs: Install one or more RPM packages.
  
      Extra *repos* may be passed to ``yum`` to enable extra repositories at install time.
  
      Extra *yes* may be passed to ``yum`` to validate license if necessary.
  
      Extra *options* may be passed to ``yum`` if necessary
      (e.g. ``['--nogpgcheck', '--exclude=package']``).
  
      ::
  
          import burlap
  
          # Install a single package, in an alternative install root
          burlap.rpm.install('emacs', options='--installroot=/my/new/location')
  
          # Install multiple packages silently
          burlap.rpm.install([
              'unzip',
              'nano'
          ], '--quiet')