guys, I want to set a default width for the image in the editor after the user uploads the picture. Where should I set it?

here are my current tinyMCE initialization settings

tinymce.init({
            selector: "-sharp" + this.elementId,
            height: 400,
            plugins: ["link", "table", "image"],
            skin_url: "assets/skins/lightgray",
            // image_dimensions: false,
            init_instance_callback : function(editor) {
              setTimeout(function(){
                console.log(self.model);
                if (self.model.content === undefined) {
                  editor.setContent("");
                } else {
                  editor.setContent(self.model.content);
                }
              },1000)
            },
            setup: editor => {
                editor.on("keyup change", () => {
                    const content = editor.getContent();
                    self.model.content = editor.getContent()
                });
            },
            // 
            images_upload_handler: function(blobInfo, success, failure) {
                var formData;
                formData = new FormData();
                formData.append("file", blobInfo.blob(), blobInfo.filename());
                self.uploadFile(`${environment.host}/admin.php/brand/common/upload`, formData).subscribe( response => {
                  var str = JSON.stringify(response);
                  var selfimgurl = JSON.parse(str)
                  console.log(selfimgurl)
                  success(selfimgurl.link);
                });
            }
        });