index Update Method
Parameters
value
The update method to use with this Index. The value must be the followings. If not set, BATCH_UPDATE will be used by default.
BATCH_UPDATE: user can call indexes.patch with files on Cloud Storage of datapoints to update.
STREAM_UPDATE: user can call indexes.upsertDatapoints/DeleteDatapoints to update the Index and the updates will be applied in corresponding DeployedIndexes in nearly real-time.