File-attachment column.
Uses FileSchema with a list of Attachments; cells may hold one or many files.
Whether the element is hidden by default.
Stable identifier of this schema node.
Arbitrary key-value map with column-specific settings.
Whether a value is mandatory for this schema.
Human-readable label used in editors or viewers.
Discriminant describing the concrete schema/component kind.
Runtime value payload; variance is specialized by sub-interfaces.
Serializes this instance to a structured JsonObject.
Serializes this instance to a compact JSON string.
Converts this instance into a mutable key-value map suitable for mutation and re-serialization.