Sitecore.NVelocity

Apparently I was working with Sitecore and its mail template. Sitecore suggest using nVelocity for template rendering. I notices that they have their own version of nVelocity called Sitecore.NVelocity. The base code is essentially the same and the code for rendering the template is slightly different as follows ( as in original Velocity)

In the constructor

Velocity.Init();

For rendering call 

Velocity.Evaluate(context, generated, "nVelocityLog", reader);