code: def _extract_email(data):
      
      ret = ''
      elements = data.get('elements', [])
      if len(elements) > 0:
          ret = elements[0].get('handle~', {}).get('emailAddress', '')
      return ret
docs: {'elements': [{'handle': 'urn:li:emailAddress:319371470',
                 'handle~': {'emailAddress': 'raymond.penners@intenct.nl'}}]}