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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 __edit_distance_alt(self, words):
 """ Compute all strings that are 1 edits away from all the words using only the letters in the corpus Args: words (list):
 The words for which to calculate the edit distance Returns: set: The set of strings that are edit distance two from the \ provided words """

        words = [x.lower() for x in words]
        return [e2 for e1 in words for e2 in self.edit_distance_1(e1)]