Success! Final stack:
  [(Lean.Doc.Syntax.command "{" `test [] "}")
   (Lean.Doc.Syntax.blockquote
    ">"
    [(Lean.Doc.Syntax.para
      "para{"
      [(Lean.Doc.Syntax.text
        (str "\"Here's a blockquote\""))]
      "}")
     (Lean.Doc.Syntax.para
      "para{"
      [(Lean.Doc.Syntax.text
        (str "\"with multiple paras\""))]
      "}")])
   (Lean.Doc.Syntax.para
    "para{"
    [(Lean.Doc.Syntax.text (str "\"that ends\""))]
    "}")]
All input consumed.