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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 wells_by_index(self) -> Dict[str, Well]: """ Accessor function used to create a look-up table of Wells by name. With indexing one can treat it as a typical python dictionary whose keys are well names. To access well A1, for example, simply write: labware.wells_by_index()['A1'] :return: Dictionary of well objects keyed by well name """

        return {well: wellObj
                for well, wellObj in zip(self._ordering, self._wells)}