Doc examples on how to access publicRuntimeConfig from different places

Is it possible to add examples on how to access publicRuntimeConfig values from the store or JS helper classes? I only found mentions that this is possible but no code examples on how to do this.

What i'm trying to do is to have a helper JS class for logging to application insights, and read the appInsightsInstrumentationKey from publicRuntimeConfig. Then I can just import it and have access to the logger, something like this.

nuxt.config.js

publicRuntimeConfig: {
    appInsightsInstrumentationKey : process.env.APP_INSIGHTS
  },

helper/logger.js

const client = new ApplicationInsights({
  config: {
    // instrumentationKey: process.env.APP_INSIGHTS, doesn't work
    // instrumentationKey: this.$config.appInsightsInstrumentationKey doesn't work
    // instrumentationKey: this.$context.appInsightsInstrumentationKey doesn't work
  }
});
client.loadAppInsights();

exports.info = async function (message, props) {
    client.trackTrace({ message: message, severity: SeverityLevel.Information });
}

home.vue

<script>
     const logger = require("../helper/logger");
      methods: {
            someAction(ev) {
                logger.info("action executed");
            }
      }
</script>

Also any help on how to do this will be welcomed, thanks!