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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 content_property(name, doc=None):
 """ Delegates a property to the first sibling in a RiakObject, raising an error when the object is in conflict. """

    def _setter(self, value):
        if len(self.siblings) == 0:
            # In this case, assume that what the user wants is to
            # create a new sibling inside an empty object.
            self.siblings = [RiakContent(self)]
        if len(self.siblings) != 1:
            raise ConflictError()
        setattr(self.siblings[0], name, value)

    def _getter(self):
        if len(self.siblings) == 0:
            return
        if len(self.siblings) != 1:
            raise ConflictError()
        return getattr(self.siblings[0], name)

    return property(_getter, _setter, doc=doc)