Puppet Community

```$application_core_version = lookup("::application::application_'${application_version}'_package_version", {'default_value' =&gt; '1.0.1.1-1101'})
  $application_libs_version = lookup("::application::application_'${application_version}'_libs_package_version", {'default_value' =&gt; '1.0.1-1'})```
this throws an error,
```Error: Syntax error in key: 'application::application_'2.0.2.2'_package_version'```
If they are supposed to be back-ticks then that does nothing and it still uses the default value