topics = [{
        "name": "supertopic",
        "partitions": [{
            "partitions_index": 0,
            "replicas": [2],
            "tags": {},
        }],
        "tags": {},
    }]
    return AlterPartitionReassignmentsRequest_v0(
        timeout_ms=timeout,
        topics=partitions
    )

class CompactArray(Array):

    def encode(self, items):
        if items is None:
            return UnsignedVarInt32.encode(0)
        
        return b''.join(
            [UnsignedVarInt32.encode(len(items) + 1)] +
     -->       [self.array_of.encode(item) for item in items]
        )

    def decode(self, data):
        length = UnsignedVarInt32.decode(data) - 1
        if length == -1:
            return None
        return [self.array_of.decode(data) for _ in range(length)]