If the key already exists, the item will be denied. If the key does not exist, a new item will be created.
Allow create or update. Default.
Do not raise error, if map item is denied due to write flag constraints.
Allow other valid map items to be committed, if a map item is denied due to write flag constraints.
If the key already exists, the item will be overwritten. If the key does not exist, the item will be denied.
Map write flags.
Remarks
Write flags are used to determine the criteria for a successful operation.
Map write flags require server version v4.3 or later. For earier server versions, set the writeMode instead.
Since
v3.5.0