"version_requirement":"Optional package version requirements (e.g. ==1.3 or >=1.2,<2.0, see https://www.python.org/dev/peps/pep-0440/#version-specifiers)",
"dependencies":"Additional dependencies, space separated (as you would pass it to pip install)",
"credentials":"Template of the credentials file",
"full_plugin_name":"The full plugin name as used in the commandline with certbot, e.g. 'dns-njalla'"