def _inserts(self): """thwe""" return {concat(a, c, b) for a, b in self.slices for c in ALPHABET}
def _transposes(self): """teh""" return {concat(a, reversed(b[:2]), b[2:]) for a, b in self.slices[:-2]}
def _replaces(self): """tge""" return { concat(a, c, b[1:]) for a, b in self.slices[:-1] for c in ALPHABET }
def _deletes(self): """th""" return {concat(a, b[1:]) for a, b in self.slices[:-1]}
def _replaces(self): """tge""" return {concat(a, c, b[1:]) for a, b in self.slices[:-1] for c in ALPHABET}