Unknown system variable 'binlog_row_image

When running "python setup.py test", I got the following errors
pymysql.err.InternalError: (1193, "Unknown system variable 'binlog_row_image'").

The "binlog_row_image" system variable is introduced to MySQL on version 5.6 (I think),
but I am using MySQL 5.5.4.

I thought the project on
"https://github.com/noplay/python-mysql-replication"
was tested for MySQL 5.5 and 5.6 (????)

Is there any workaround other than upgrading to MySQL 5.6 or 5.7?

Start by reproducing the failure with `python setup.py test` against MySQL 5.5.4 and compare it with the project's stated MySQL 5.5 and 5.6 support. Trace where the `binlog_row_image` system variable is queried, then verify that the behavior or workaround is covered by tests for the affected MySQL versions.

Written by the indexing model from the issue text.