new_contents: '''
  Out of the box filters you can use to filter your exports
  '''
  
  def instances(doc):
      """
      Only return XFormInstances, not duplicates or errors
      """
      return doc["doc_type"] == "XFormInstance"
  
  def duplicates(doc):
      """
      Only return Duplicates
      """
      return doc["doc_type"] == "XFormDuplicate"
   
  def problem_forms(doc):
      """
      Return non-XFormInstances (duplicates, errors, etc.)
      """
      return doc["doc_type"] != "XFormInstance"
subject: add export filters