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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 _save_translations(sender, instance, *args, **kwargs):
 	""" 	This signal saves model translations. 	"""

	
	# If we are in a site with one language there is no need of saving translations
	if site_is_monolingual():
		return False

	cls = sender

	# If its class has no "translatable_fields" then there are no translations
	if not hasattr(cls._meta, "translatable_fields"):
		return False

	# For each translatable field, get its value, computes its md5 and for each language creates its
	# empty translation.
	for field in cls._meta.translatable_fields:
		value = getattr(instance,field)
		if not value is None:
			md5_value = checksum(value)
			setattr( instance, u"md5"+field, md5_value )
			for lang in settings.LANGUAGES:
				lang = lang[0]
				# print "({0}!={1}) = {2}".format(lang, settings.LANGUAGE_CODE,lang!=settings.LANGUAGE_CODE)
				if lang != settings.LANGUAGE_CODE:
					context = u"Updating from object"
					if hasattr(instance, "trans_context"):
						context = getattr(instance, "trans_context")
					trans = FieldTranslation.update(instance, field, lang, context)