def get_top_by_tag(tags, options={})
      api_response = @api_client.make_api_request(:GET, "artist/byTag/top", {:tags => tags}, options)
      @api_client.artist_digestor.nested_list_from_xml_doc(api_response.item_xml("taggedResults"), :taggedItem, :artist)
    end
def get_top_by_tag(tags, options={})
      api_response = @api_client.make_api_request(:GET, "artist/byTag/top", {:tags => tags}, options)
      @api_client.artist_digestor.nested_list_from_xml_doc(api_response.item_xml("taggedResults"), :taggedItem, :artist)
    end
calls *artist/byTag/top* API method and returns Artist array

 @param [String] tags tag or comma separated list of tags
 @param [Hash] options optional hash of additional API parameters, e.g. page_size => 50, etc
 @return [Array<Artist>]