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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 begin(self):
 		"""Start taking temperature measurements. Returns True if the device is 		intialized, False otherwise. 		"""

		# Check manufacturer and device ID match expected values.
		mid = self._device.readU16BE(MCP9808_REG_MANUF_ID)
		did = self._device.readU16BE(MCP9808_REG_DEVICE_ID)
		self._logger.debug('Read manufacturer ID: {0:04X}'.format(mid))
		self._logger.debug('Read device ID: {0:04X}'.format(did))
		return mid == 0x0054 and did == 0x0400