Interface IRangeStreamResponse

range_response is a partial response for the KV.RangeStream RPC. The result of proto.Merge() applied on all responses should result in the same RangeResponse response as to the Range() method.

Field population across chunks:

• kvs: each chunk carries a disjoint slice of the result. Concatenating them in order yields the full key set.
• header, more, count: set only on the final chunk. Non-merge clients can rely on io.EOF (end of stream) to detect completion. These fields are provided for clients that merge all responses into a single RangeResponse.