code: function stringify(node, doc) {
      var file = vfile(doc)
      var Compiler
  
      freeze()
      Compiler = processor.Compiler
      assertCompiler('stringify', Compiler)
      assertNode(node)
  
      if (newable(Compiler)) {
        return new Compiler(node, file).compile()
      }
  
      return Compiler(node, file) // eslint-disable-line new-cap
    }
docs: Stringify a unist node representation of a file (in string or vfile representation) into a string using the `Compiler` on the processor.