NewClientHelper creates a helper instance.

NewTiKVSnapshot creates a snapshot of an TiKV store.

RC stands for 'read committed'.

RCCheckTS stands for 'read consistency' with ts check.

SI stands for 'snapshot isolation'.

ClientHelper wraps LockResolver and RegionRequestSender.

ConfigProbe exposes configurations and global variables for testing purpose.

KVSnapshot implements the tidbkv.Snapshot interface.

Scanner support tikv scan.

SnapshotProbe exposes some snapshot utilities for testing purpose.

SnapshotRuntimeStats records the runtime stats of snapshot.

IsoLevel is the transaction's isolation level.