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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 _dump_query_timestamps(self, current_time: float):
 """Output the number of GraphQL queries grouped by their query_hash within the last time."""

        windows = [10, 11, 15, 20, 30, 60]
        print("GraphQL requests:", file=sys.stderr)
        for query_hash, times in self._graphql_query_timestamps.items():
            print("  {}".format(query_hash), file=sys.stderr)
            for window in windows:
                reqs_in_sliding_window = sum(t > current_time - window * 60 for t in times)
                print("    last {} minutes: {} requests".format(window, reqs_in_sliding_window), file=sys.stderr)