saved data is not set in editor.js this.$refs.editor._data.state.editor.render(x); function 

I am using Editor.js in vue js. all things are running perfect but I am trying to set fetched data set in  this.$refs.editor._data.state.editor.render(x);   function but I got error  
that function is not found.
I want as page load then data set in editor.js.
