I have a template file in a plugin that I need to compile and write
the HTML to a separate directory. I've seen the following way to
initialize a MT::Template::Context object to pass to
MT::Template->build, but it causes an error. This is use in the docs:

my $ctx = MT::Template::Context->new();

Yet when I run that in a callback method attached to MT::Comment, I
get the following error in my error log:

died with: Can't call method "server_offset" on an undefined value at
lib/MT/Template/ContextHandlers.pm line 10075.

All I need to do is load the template, build it to HTML, and write it
to a file. How should I setup the Context so that I can do this?