plugin-with-data.js

const Fieldtype = {
  mixins: [window.Storyblok.plugin],
  data() {
    return {
      ich_bin_eine_state_variable_die_nicht_im_model_beinhaltet_ist: true,
      ich_darf_nicht_model_heissen: true
    }
  },
  template: `<div>
     <input class="uk-width-1-1" v-model="model.example" /> 
     {{ich_bin_eine_state_variable_die_nicht_im_model_beinhaltet_ist}}
     {{ich_darf_nicht_model_heissen}}
  </div>`,
  methods: {
    initWith() {
      return {
        plugin: 'example_plugin',
        example: 'Hello world!'
      }
    },
    pluginCreated() {
      console.log('plugin:created')
    }
  },
  watch: {
    'model': {
      handler: function (value) {
        this.$emit('changed-model', value);
      },
      deep: true
    }
  }
}