pub type StructPrefix = fn(&Schema<'_>, &mut dyn ShapeSerializer) -> Result<(), SerdeError>;Expand description
Callback for writing members into the currently open structure map.
Runs after the map and its container state are opened, before modeled members.
The schema is the value’s structure or union schema, obtained through
[SerializableStruct::schema]. Any error is returned immediately without
writing modeled members.