Redistribute slots to ensure uniform distribution across existing shards in the cluster.
See https://www.paws-r-sdk.com/docs/elasticache_rebalance_slots_in_global_replication_group/ for full documentation.
elasticache_rebalance_slots_in_global_replication_group(
GlobalReplicationGroupId,
ApplyImmediately
)[required] The name of the Global datastore
[required] If True, redistribution is applied immediately.