SVN mirror: Reading SVN mirror config via REST api

Dear ladies and gentlemen,
via the REST api of SubGit in Bitbucket server, it is possible to configure the mirror plugin:

Is there any chance to read this configuration using the REST api. In the documentation there is only POST requests available.
Is there any other way to get the configuration on the Bitbucket server, for example from a local file?
Kind regarst,
Michael Krimm