Function findDroppableById

src/state/registry/create-registry.ts:113–115

(id: DroppableId)

  };

  function findDroppableById(id: DroppableId): DroppableEntry | null {
    return entries.droppables[id] || null;
  }

  function getDroppableById(id: DroppableId): DroppableEntry {
    const entry: DroppableEntry | null = findDroppableById(id);