def _auth_with_refresh_token(session, refresh_token):
<EOL>token_request_data = {<EOL>'<STR_LIT>': OAUTH2_CLIENT_ID,<EOL>'<STR_LIT>': OAUTH2_CLIENT_SECRET,<EOL>'<STR_LIT>': '<STR_LIT>',<EOL>'<STR_LIT>': refresh_token,<EOL>}<EOL>res = _make_token_request(session, token_request_data)<EOL>return res['<STR_LIT>']<EOL>
Authenticate using OAuth refresh token.

    Raises GoogleAuthError if authentication fails.

    Returns access token string.