hunk.code_window:   public previewEmail(
       @UserSession() user: IJwtPayload,
       @Body('content') content: string | IEmailBlock[],
       @Body('contentType') contentType: MessageTemplateContentType,
       @Body('payload') payload: any
     ) {
       return this.previewEmailUsecase.execute(
         PreviewEmailCommand.create({
           userId: user._id,
           organizationId: user.organizationId,
  
hunk.labels: keep keep keep keep replace keep keep keep keep keep
hunk.after_edit:     @Body('payload') payload: any,
       @Body('subject') subject: string
  
hunk.file_path: apps/api/src/app/content-templates/content-templates.controller.ts
hunk.type: replace
file: # package.json is formatted by package managers, so we ignore it here
  package.json
  