Support for the Ruby 2.4 series has ended. See here for reference.
![show/hide quicksearch [+]](../../images/find.png)
The BestSet chooses the best available method to query a remote index.
It combines IndexSet and APISet
Creates a BestSet for the given sources or Gem::sources if none are specified.  sources must be a Gem::SourceList.
 
               # File rubygems/resolver/best_set.rb, line 13
def initialize sources = Gem.sources
  super()
  @sources = sources
end