Project
  [ DocBlock [ PluginAnnotation "foo" "bar" , TOC [] ]
  , DedentAnnotation
  , Project
      [ Unit
          [ LetStatement { letLexpr = "g:x" , letValue = "1 \"Unset!" }
          , LetStatement { letLexpr = "g:y" , letValue = "1" }
          ]
      ]
  ]