code: def search_users_by_tip(options={})
        name = options.delete(:name)
        options[:limit] = 500
        tips = search_tips(options)
        user = []
        tips.each do |tip|
          user << tip['user'] if check_name(tip['user'], name)
        end
        user.uniq
    end
docs: Search for users by tip
   @param [Hash]  options
   @option options String :ll - Latitude and longitude in format LAT,LON
   @option options Integer :limit - The limit of results to return.
   @option options Integer :offset - Used to page through results.
   @option options String :filter - Set to 'friends' to limit tips to those from friends.
   @option options String :query - Only find tips matching this term.
   @option options String :name - Match on name