Function customThing

packages/analytics-core/tests/plugins-methods.test.js:44–48

(one, two, three)

      name: 'two',
      methods: {
        customThing(one, two, three) {
          const { page } = this.instance
          // Call page from analytics.page
          page()
        },
        niceFunc: (one, two, ...args) => {
          argsToPassTwo = [ one, two ]
          // Arrow functions break this.x context. The instance is instead injected as last arg