code: def default_record_to_index(record):
      
      index_names = current_search.mappings.keys()
      schema = record.get('$schema', '')
      if isinstance(schema, dict):
          schema = schema.get('$ref', '')
  
      index, doc_type = schema_to_index(schema, index_names=index_names)
  
      if index and doc_type:
          return index, doc_type
      else:
          return (current_app.config['INDEXER_DEFAULT_INDEX'],
                  current_app.config['INDEXER_DEFAULT_DOC_TYPE'])
docs: Get index/doc_type given a record.
  
      It tries to extract from `record['$schema']` the index and doc_type.
      If it fails, return the default values.
  
      :param record: The record object.
      :returns: Tuple (index, doc_type).