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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def _GetChromeWebStorePage(self, extension_identifier):
 """Retrieves the page for the extension from the Chrome store website. Args: extension_identifier (str):
 Chrome extension identifier. Returns: str: page content or None. """

    web_store_url = self._WEB_STORE_URL.format(xid=extension_identifier)
    try:
      response = requests.get(web_store_url)

    except (requests.ConnectionError, requests.HTTPError) as exception:
      logger.warning((
          '[{0:s}] unable to retrieve URL: {1:s} with error: {2!s}').format(
              self.NAME, web_store_url, exception))
      return None

    return response.text