using System;
using Microsoft.IdentityModel.Tokens;
class TestClass
{
    public void TestMethod()
    {
        TokenValidationParameters parameters = new TokenValidationParameters();
        parameters.AudienceValidator = (audiences, token, tvp) =>
        {
            // Implement your own custom audience validation
            if (PerformCustomAudienceValidation(audiences, token))
                return true;
            else
                return false;
        };
    }
}