##
8.8 #stop

The template:

      A cat
      #if 1
        sat on a mat
        #stop
        watching a rat
      #end if
      in a flat.

The output:

      A cat
        sat on a mat

The generated code:

      write('A cat\n')
      if 1:
          write('  sat on a mat\n')
          if dummyTrans:
              return trans.response().getvalue()
          else:
              return ""
          write('  watching a rat\n')
      write('in a flat.\n')