def _association_types(self):
        """Retrieve Custom Indicator Associations types from the ThreatConnect API."""
        # Dynamically create custom indicator class
        r = self.session.get('/v2/types/associationTypes')

        # check for bad status code and response that is not JSON
        if not r.ok or 'application/json' not in r.headers.get('content-type', ''):
            warn = u'Custom Indicators Associations are not supported.'
            self.log.warning(warn)
            return

        # validate successful API results
        data = r.json()
        if data.get('status') != 'Success':
            warn = u'Bad Status: Custom Indicators Associations are not supported.'
            self.log.warning(warn)
            return

        try:
            # Association Type Name is not a unique value at this time, but should be.
            for association in data.get('data', {}).get('associationType', []):
                self._indicator_associations_types_data[association.get('name')] = association
        except Exception as e:
            self.handle_error(200, [e])
Retrieve Custom Indicator Associations types from the ThreatConnect API.