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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 kernel():
 	""" 	Handle linux kernel update 	"""

	print('================================')
	print('  WARNING: upgrading the kernel')
	print('================================')
	time.sleep(5)

	print('-[kernel]----------')
	cmd('rpi-update', True)
	print(' >> You MUST reboot to load the new kernel <<')