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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 oem_init(self):
 """Initialize the command object for OEM capabilities A number of capabilities are either totally OEM defined or else augmented somehow by knowledge of the OEM. This method does an interrogation to identify the OEM. """

        if self._oemknown:
            return
        self._oem, self._oemknown = get_oem_handler(self._get_device_id(),
                                                    self)