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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 feature_info(self):
 """ Returns information about the features available for this CPC. Authorization requirements: * Object-access permission to this CPC. Returns: :term:`iterable`: An iterable where each item represents one feature that is available for this CPC. Each item is a dictionary with the following items: * `name` (:term:`unicode string`):
 Name of the feature. * `description` (:term:`unicode string`):
 Short description of the feature. * `state` (bool):
 Enablement state of the feature (`True` if the enabled, `False` if disabled). Raises: :exc:`ValueError`: Features are not supported on the HMC. :exc:`~zhmcclient.HTTPError` :exc:`~zhmcclient.ParseError` :exc:`~zhmcclient.AuthError` :exc:`~zhmcclient.ConnectionError` """

        feature_list = self.prop('available-features-list', None)
        if feature_list is None:
            raise ValueError("Firmware features are not supported on CPC %s" %
                             self.name)
        return feature_list