Required property to indicate which columns should be included in the table data.
Optional isIf true, the viewport will be filled starting from the end of the table, where 0 is the last row of the table. Default is false.
Optional previewOptional preview instructions for columns in the table data.
The rows to include in the viewport. This can be either a RangeSet or a single range with
first and last properties.
Optional updateMinimum interval between updates, in milliseconds. If not specified, the server default will be used, typically 1000ms.
Note that setting this to smaller values will not necessarily result in more frequent updates - the server may not propagate updates that frequently, or there may be no updates to propagate.
Options for requesting a viewport subscription to a table.