You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: transitive.rb
    path of file: ./repos/ruby-packer/ruby/lib/rexml/formatters
    
    the code of the file until where you have to start completion: # frozen_string_literal: false
require_relative 'pretty'

module REXML
  module Formatters
    # The Transitive formatter writes an XML document that parses to an
    # identical document as the source document.  This means that no extra
    # whitespace nodes are inserted, and whitespace within text nodes is
    # preserved.  Within these constraints, the document is pretty-printed,
    # with whitespace inserted into the metadata to introduce formatting.
    #
    # Note that this is only useful if the original XML is not already
    # formatted.  Since this f
    
      def write_element( node, output )
        output << "<#{node.expanded_name}"

        node.attributes.each_attribute do |attr|
          output << " "
          attr.write( output )
        end unless node.attributes.empty?

        output << "\n"
        output << ' '*@level
        if node.children.empty?
          output << " " if @ie_hack
          output << "/"
        else
          output << ">"
          # If compact and all children are text, and if the formatted output
          # is less than the specified width, then try to print everything on
          # one line
          @level += @indentation
          node.children.each { |child|
            write( child, output )
          }
          @level -= @indentation
          output << "</#{node.expanded_name}"
          output << "\n"
          output << ' '*@level
        end
        output << ">"
      end