Access the parent <GridStack>'s grid instance and helpers.
<GridStack>
Must be called within a component that is a descendant of <GridStack>.
Raw GridStack instance (not a Vue ref — never proxy it).
Bumps whenever the layout changes — use as a reactive dependency.
Optional
Access the parent
<GridStack>'s grid instance and helpers.Must be called within a component that is a descendant of
<GridStack>.