try{
   final shortener = BitLyShortener(accessToken: "YOUR_TOKEN");
   final linkData = await shortener.generateShortLink(longUrl: 'ANY_URL');
   print(linkData.link);
 } on BitLyException catch(e){ //For handling BitLyException
   print(e);
 }

 try{
   final shortener = TinyUrlShortener(accessToken: "YOUR_TOKEN");
   final linkData = await shortener.generateShortLink(longUrl: 'ANY_URL');
   print(linkData.shortUrl);
 } on TinyUrlException catch(e){ //For handling TinyUrlException
   print(e);
 }

 try{
   final shortener = ShorteStShortener(accessToken: "YOUR_TOKEN");
   final linkData = await shortener.generateShortLink("www.abc.xyz");
   print(linkData.shortenedUrl);
 } on Exception catch(e){//For Bad Requests
   print(e);
 }