How to use the megadraft.insertDataBlock function in megadraft

onClick(e) {
    const data = {
      type: constants.PLUGIN_TYPE,
      caption: "Initial plugin text",
    };

    this.props.onChange(insertDataBlock(this.props.editorState, data));
  }

onSave(tableConfig) {
    this.setState({isEditing: false});
    const data = {
      type: constants.PLUGIN_TYPE,
      ...tableConfig
    };

    this.props.onChange(insertDataBlock(this.props.editorState, data));
  }

onClick(e) {
    const data = {articles: [{key: DraftJS.genKey()}], type: constants.PLUGIN_TYPE};
    this.props.onChange(insertDataBlock(this.props.editorState, data));
  }