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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_element_in_pif_composition_(pif, elemental_symbol):
 """ If the element in question if in the composition array in the pif, it returns that Composition object and the position in the composition array otherwise it returns False :param pif: ChemicalSystem Pif in question :param elemental_symbol: string of the atomic symbol of the element in question :return: either False if not found in the composition or the Compositional object along with its index in the composition array in the pif """

    if pif.composition is None:
        pif.composition = []
    for i, c in enumerate(pif.composition):
        if c.element == elemental_symbol or c.element.lower(
        ) == elements_data[elemental_symbol]["name"].lower():
            return [c, i]
        i += 1
    return False