def _parse_base_properties(response):
raw_headers = _parse_response_for_dict(response)<EOL>resource_properties = ResourceProperties()<EOL>resource_properties.last_modified = parser.parse(raw_headers.get('<STR_LIT>'))<EOL>resource_properties.etag = raw_headers.get('<STR_LIT>')<EOL>return resource_properties<EOL>
Extracts basic response headers.