GroupLite
Group metadata using title-based column references (update_lite flow).
[]Column titles that are direct members of this group.
When true, the group's direct member columns are excluded from wildcard queries unless include_hidden is set.
Policy for columns in this group's zone that are absent from an update.
Title of the parent group within the same block model. Null means root.
Publisher-supplied free-form metadata for the group, as a JSON object. Keys must be non-empty strings (≤ 256 chars) with no leading whitespace or dot and none of the characters / \ : > < | ? " *; keys are unique case-insensitively. Values may be any JSON-compatible type. A single tags object serialised as UTF-8 JSON must be at most 10 KiB.
Human-readable label for the group, unique across the block model.
