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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_method(name):
 """ Delegates a method to the first sibling in a RiakObject, raising an error when the object is in conflict. """

    def _delegate(self, *args, **kwargs):
        if len(self.siblings) != 1:
            raise ConflictError()
        return getattr(self.siblings[0], name).__call__(*args, **kwargs)

    _delegate.__doc__ = getattr(RiakContent, name).__doc__

    return _delegate