UNDOCUMENTED.
1 or 0 (true/false) - (may not exist) true if this chest is unpair with chest next to it.
List of items in this container.
OptionalLootTable?: { type: "string"; value: string }(May not exist) Loot table to be used to fill the chest when it is next opened, or the items are otherwise interacted with.
OptionalLootTableSeed?: { type: "int"; value: number }(May not exist) Seed for generating the loot table. 0 or omitted use a random seed.
Optionalpairlead?: { type: "byte"; value: number }(May not exist) UNDOCUMENTED.
Optionalpairx?: { type: "int"; value: number }(May not exist) The X position of the chest paired with.
Optionalpairz?: { type: "int"; value: number }(May not exist) The Z position of the chest paired with.
Additional fields for chest, [trapped chest](https://minecraft.wiki/w/trapped chest), barrel, and [ender chest](https://minecraft.wiki/w/ender chest).