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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_shape(self):
 		""" 		Return a tuple of this array's dimensions. This is done by 		querying the Dim children. Note that once it has been 		created, it is also possible to examine an Array object's 		.array attribute directly, and doing that is much faster. 		"""

		return tuple(int(c.pcdata) for c in self.getElementsByTagName(ligolw.Dim.tagName))[::-1]