code: def store(self, installed_stuff, metadata, interpreter, options):
          
          new_content = {
              'timestamp': int(time.mktime(time.localtime())),
              'installed': installed_stuff,
              'metadata': metadata,
              'interpreter': interpreter,
              'options': options
          }
          logger.debug("Storing installed=%s metadata=%s interpreter=%s options=%s",
                       installed_stuff, metadata, interpreter, options)
          with filelock(self.lockpath):
              self._write_cache([json.dumps(new_content)], append=True)
docs: Store the virtualenv metadata for the indicated installed_stuff.