def _parse_lease_time(response):
raw_headers = _parse_response_for_dict(response)<EOL>lease_time = raw_headers.get('<STR_LIT>')<EOL>if lease_time:<EOL><INDENT>lease_time = _int_to_str(lease_time)<EOL><DEDENT>return lease_time<EOL>
Extracts lease time return header.