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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 _read_header(self):
        '''
        Little-endian
        |... 4 bytes unsigned int ...|... 4 bytes unsigned int ...|
        |        frames count        |      dimensions count      |
        '''
        self._fh.seek(0)
        buf = self._fh.read(4*2)
        fc, dc = struct.unpack("<II", buf)
        return fc, dc