Project
  [ Project
      [ Unit
          [ LetStatement
              { letLexpr = "s:example" , letValue = "s:myfunction('foo')" }
          , LetStatement
              { letLexpr = "l:list[l:line - 1]"
              , letValue = "0 \" Trailing comment."
              }
          , LetStatement { letLexpr = "g:foo " , letValue = "'bar'" }
          ]
      ]
  ]