code: def find_vext_files(self):
          
          packages = self.depends_on("vext")
          vext_files = []
          for location in [package.get("location") for package in packages]:
              if not location:
                  continue
              vext_files.extend(glob(join(location, "*.vext")))
          return vext_files
docs: :return:  Absolute paths to any provided vext files