code: def logo_path(instance, filename):
      
      extension = os.path.splitext(filename)[1].lower()
      instance_id = str(instance.id)
      fullname = os.path.join("enterprise/branding/", instance_id, instance_id + "_logo" + extension)
      if default_storage.exists(fullname):
          default_storage.delete(fullname)
      return fullname
docs: Delete the file if it already exist and returns the enterprise customer logo image path.
  
      Arguments:
          instance (:class:`.EnterpriseCustomerBrandingConfiguration`): EnterpriseCustomerBrandingConfiguration object
          filename (str): file to upload
  
      Returns:
          path: path of image file e.g. enterprise/branding/<model.id>/<model_id>_logo.<ext>.lower()