<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def get_file_clusters(self, date):
 """Retrieves file similarity clusters for a given time frame. Args: date: the specific date for which we want the clustering details. Example: 'date': '2013-09-10' Returns: A dict with the VT report. """

        api_name = 'virustotal-file-clusters'

        (all_responses, resources) = self._bulk_cache_lookup(api_name, date)
        response = self._request_reports("date", date, 'file/clusters')
        self._extract_response_chunks(all_responses, response, api_name)

        return all_responses