Return the profile with the received ID as a dict

def _get_profile(self, profile_id):
        '''Return the profile with the received ID as a dict'''
        profile_metadata = self._registry.get(profile_id)
        if not profile_metadata:
            return

        path = self._get_absolute_path(profile_metadata.get('schema_path'))
        if path and os.path.isfile(path):
            return self._load_json_file_or_url(path)

        url = profile_metadata.get('schema')
        if url:
            return self._load_json_file_or_url(url)