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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 read_connections(self, connections):
 """ Reads connections from configuration parameters. Each section represents an individual Connectionparams :param connections: configuration parameters to be read """

        del self._items[:]
        for key in connections.get_key_names():
            item = DiscoveryItem()
            item.key = key
            value = connections.get_as_nullable_string(key)
            item.connection = ConnectionParams.from_string(value)
            self._items.append(item)