I am trying to send a pdf through WhatsApp Business API that is stored in google drive, but I am receiving an error " 12300 - Invalid Content-Type " can you help me where am I going wrong also, I want to know how to send a pdf in MediaUrl from my local storage. I tried using Twilio Assets but it's also not working. Here is my code:

 static void Main(string[] args) {     var accountSid = " ";     var authToken = " ";     TwilioClient.Init(accountSid, authToken);     ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls12;     var mediaUrl = new[] {         new Uri("google drive link")     }.ToList();          var messageOptions = new CreateMessageOptions(         new PhoneNumber("whatsapp:+91XXXXXX"));     messageOptions.From = new PhoneNumber("whatsapp:+XXXXXXXX");     messageOptions.Body = "Hello how are you?";     messageOptions.MediaUrl = mediaUrl;     var message = MessageResource.Create(messageOptions);     Console.WriteLine(message.Body);     Console.ReadLine(); }