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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 load(self, field_xso):
 """ Load the field information from a data field. :param field_xso: XSO describing the field. :type field_xso: :class:`~.Field` This loads the current value, description, label and possibly options from the `field_xso`, shadowing the information from the declaration of the field on the class. This method is must be overriden and is thus marked abstract. However, when called from a subclass, it loads the :attr:`desc`, :attr:`label` and :attr:`required` from the given `field_xso`. Subclasses are supposed to implement a mechansim to load options and/or values from the `field_xso` and then call this implementation through :func:`super`. """

        if field_xso.desc:
            self._desc = field_xso.desc

        if field_xso.label:
            self._label = field_xso.label

        self._required = field_xso.required