'finalize_invoice_move_lines(move_lines) -> move_lines
Hook method to be overridden in additional modules to verify and
possibly alter the move lines to be created by an invoice, for
special cases.
:param move_lines: list of dictionaries with the account.move.lines (as for create())
:return: the (possibly updated) final move_lines to create for this invoice'

@api.multi
def finalize_invoice_move_lines(self, move_lines):

    return move_lines
