BatchedAtomicOperation.prototype.check(...checks: Deno.AtomicCheck[]): this
Add to the operation a check that ensures that the versionstamp of the
key-value pair in the KV store matches the given versionstamp. If the check
fails, the entire operation will fail and no mutations will be performed
during the commit.
If there are additional batches of atomic operations to perform, they will
be abandoned.