I installed this chaostoolkit extension today. I run an experiment to call function `enable_proxy` and `disable_proxy` which reports the following error: ```text [2019-08-16 13:02:24 ERROR] Unable to modify proxy MY_PROXY_NAME [2019-08-16 13:02:24 ERROR] => failed: AssertionError ``` However, I can verify with `toxiproxy-cli` that the `disable_proxy` action does toggle the proxy to disabled status. This is was encountered with toxiproxy version 2.1.4.