code: function createStringifier (pp, spaces) {
    return function stringify (value) {
      var visitor = prettyPrintVisitor(pp, spaces)
      traverse(value, visitor)
      return visitor.result
    }
  }
docs: Stringifier factory.
  
  @param {function} pp Fallback pretty printer
  @param {number} spaces Number of spaces for indentation
  @return {function}