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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 _iadd(self, other):
 		"""Add all of the elements of other to self. 		if isinstance(it, _basebag):
 				This runs in O(it.num_unique_elements()) 		else: 				This runs in O(len(it)) 		"""

		if isinstance(other, _basebag):
			for elem, count in other.counts():
				self._increment_count(elem, count)
		else:
			for elem in other:
				self._increment_count(elem, 1)
		return self