# File lib/twitter/api.rb, line 610
    def friendship(source, target, options={})
      options.merge_user!(source, "source")
      options[:source_id] = options.delete(:source_user_id) unless options[:source_user_id].nil?
      options.merge_user!(target, "target")
      options[:target_id] = options.delete(:target_user_id) unless options[:target_user_id].nil?
      object_from_response(Twitter::Relationship, :get, "/1/friendships/show.json", options)
    end