class Tilt::Template

Subclasses must provide an implementation of this method.

variables set in this method are available when #evaluate is called.
engine. Called immediately after template data is loaded. Instance
Do whatever preparation is necessary to setup the underlying template

def prepare
  if respond_to?(:compile!)
    # backward compat with tilt < 0.6; just in case
    warn 'Tilt::Template#compile! is deprecated; implement #prepare instead.'
    compile!
  else
    raise NotImplementedError
  end
end