old_contents: from i2b2_import.meta_import import MetaImport
  import logging
  from xml.etree import ElementTree
  
  
  class PPMIMetaImport(MetaImport):
      """
      This is an implementation of the MetaImport class.
      It can be used to import meta data from PPMI XML file into the I2B2 schema.
      """
      @staticmethod
      def meta2i2b2(source, db_conn):
          """
          The function that imports meta data from PPMI XML file into the I2B2 schema.
          :param source: XML file containing PPMI meta data.
          :param db_conn: Connection to the I2B2 DB.
          :return:
          """
          root = ElementTree.parse(source).getroot()
          for project_id in root.findall('projectIdentifier'):
              logging.info(project_id)
  
new_contents: from i2b2_import.meta_import import MetaImport
  import logging
  from defusedxml.ElementTree import parse
  
  
  class PPMIMetaImport(MetaImport):
      """
      This is an implementation of the MetaImport class.
      It can be used to import meta data from PPMI XML file into the I2B2 schema.
      """
      @staticmethod
      def meta2i2b2(source, db_conn):
          """
          The function that imports meta data from PPMI XML file into the I2B2 schema.
          :param source: XML file containing PPMI meta data.
          :param db_conn: Connection to the I2B2 DB.
          :return:
          """
          root = parse(source).getroot()
          for project_id in root.findall('projectIdentifier'):
              logging.info(project_id)
  
subject: fix security issue