{! 10 lines 2 code 5 comments 3 blanks !}

{! All Dust comments are multiline comments.  And there's no quoting
   comment openers and closers.  Instead there are escape sequences
   for producing literal brackets in template output: {~lb} outputs a
   left-bracket.!} <h1>Hello

world!</h1>{! More comments !}

<h2>~{lb}Goodbye, world~{rb}</h2>