How to implement a custom LifetimeValidator, struggles in syntax

[tscaff]

Good afternoon.

I am attempting to implement a custom lifetime validator for our harmony core service to adapt for possible offline conditions with our identity service.

I have followed examples that are written in C# to try to do this but I cannot get the DBL compiler to accept my adjustments.

I'm getting the following error message when I am trying to assign the custom validator to my token validation parameters.

%DBL-E-REQPARM, Missing required parameter 1 in routine GetRequiredService : & }

Following is the source code line where the assignment is being made

        lambda configJwt(o)
		begin
			o.RequireHttpsMetadata = false
            o.IncludeErrorDetails = true
            o.ClaimsIssuer = AuthenticationTools.GetIssuer()
            o.Audience = AuthenticationTools.GetAudience()
            o.TokenValidationParameters = new TokenValidationParameters()
            &    {
            &    ValidateIssuer = true,
            &    ValidIssuer = AuthenticationTools.GetIssuer(),
            &    ValidateAudience = true,
            &    ValidAudience = AuthenticationTools.GetAudience(),
            &    ValidateIssuerSigningKey = true,
			&	IssuerSigningKeys = AuthenticationTools.GetJwks(),
			&	RequireExpirationTime = true,
			&	ValidateLifeTime = true,
			&	LifetimeValidator = new MyTokenValidationService(serviceProvider.GetRequiredService<IHttpContextAccessor>()).ValidateLifetime,
            &   RequireSignedTokens = true
            &    }

This is somewhat of a time critical request as we are trying to implement this before we go to production. I need assistance in implementing this properly so that the compiler will accept the changes. Can anyone help with this?