code: def build_media(self):
          
          logger.debug("Building media directory")
          if self.verbosity > 1:
              self.stdout.write("Building media directory")
          if os.path.exists(self.media_root) and settings.MEDIA_URL:
              target_dir = path.join(self.fs_name, self.build_dir, settings.MEDIA_URL.lstrip('/'))
              logger.debug("Copying {}{} to {}{}".format("osfs://", self.media_root, self.fs_name, target_dir))
              copy.copy_dir("osfs:///", smart_text(self.media_root), self.fs, smart_text(target_dir))
docs: Build the media files.