QuillToolbarImageButton(
                      controller: _controller,
                      options: QuillToolbarImageButtonOptions(
                          imageButtonConfigurations:
                              QuillToolbarImageConfigurations(
                        onRequestPickImage:
                            (context, imagePickerService) async {
                          var imgFile = await imagePickerService.pickImage(
                              source: imgSource.ImageSource.gallery);
                          var bytes = await imgFile!.readAsBytes();

                          // Encode the file data to base64
                          String base64String = base64Encode(bytes);
                          return base64String;
                        },
                        onImageInsertCallback: (image, controller) async {

                          controller.insertImageBlock(
                              imageSource: "data:image/png;base64,${image}");
                        },
                      )),
                    ),