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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 insert(self, index: int, item: object) -> None: """ The Abstract class `MutableSequence` leverages this insert method to perform the `BlueprintGroup.append` operation. :param index: Index to use for removing a new Blueprint item :param item: New `Blueprint` object. :return: None """

        self._blueprints.insert(index, item)