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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 try_read(self, address, size):
 """Try to read memory content at specified address. If any location was not written before, it returns a tuple (False, None). Otherwise, it returns (True, memory content). """

        value = 0x0

        for i in range(0, size):
            addr = address + i

            if addr in self._memory:
                value |= self._read_byte(addr) << (i * 8)
            else:
                return False, None

        return True, value