Get country mobile number mask using libphone

GetCountryMobileNumberMask.cs

 //https://www.nuget.org/packages/libphonenumber-csharp
 public static string GetMobileMask(string regionCode) // "IN"
        {
            try
            {
                var exampleNumber = PhoneNumberUtil.GetExampleNumberForType(regionCode, PhoneNumberType.MOBILE);
                var formattedNumber = PhoneNumberUtil.FormatNumberForMobileDialing(exampleNumber, regionCode, true)[1..];
                var mask = Regex.Replace(formattedNumber, @"\d", "0"); //change 0 to whatever you want, my controls treats 0 as any digit
                return mask; //"00000 0000"
            }
            catch (NullReferenceException e)
            {
                return "";
            }
        }