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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_elements(mol, label):
 """ The the elements of the atoms in the specified order Args: mol: The molecule. OpenBabel OBMol object. label: The atom indices. List of integers. Returns: Elements. List of integers. """

        elements = [int(mol.GetAtom(i).GetAtomicNum()) for i in label]
        return elements