vue-codemirror怎么调用它的api

Question

vue-codemirror看了一下文档找到了api、但是不知道这个doc.是什么意思，我试过this.$refs.myEditor不行，请问怎么调用https://codemirror.net/doc/ma...

<template>
  <div>
    <codemirror
      style="height:100%;"
      ref="myEditor"
      :value="editorJson"
    ></codemirror>
  </div>
</template>
<script>
 import {codemirror} from "vue-codemirror-lite";

  export default {
    name: "PreviewCode",
    props: {
      fileFormat: {
        type: String,
        default: "json"
      },
      editorJson: {
        type: String,
        default: ""
      }
    },
    data() {
      return {
        visible: false
      };
    },

    components: {
      codemirror
    }
  };
</script>