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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 get_backup_filename(self, path):
 		"""Proposes a name for the backup file. 			Keyword arguments: 			path -- temporal filename 			"""

		head = datetime.utcnow().replace(tzinfo=pytz.UTC).strftime("%Y%m%d%H%M%S")
		self.backup = "stations/backup/%s.%s" % (head, path)
		return self.backup