Public shape provided by PopulatesMixin.
The applier is the only public surface. The spec is consumed during Phase 2 hydration and not retained.
Invoked by the Hydrator's Phase-2 instruction dispatch from a template's populates field. Instruction applier — consumes the spec during hydration to spawn/populate; the spec is not retained and there is no paired getter (not a property).
Hydrator
populates
Public shape provided by PopulatesMixin.
The applier is the only public surface. The spec is consumed during Phase 2 hydration and not retained.