Const
Envelope key: the payload accumulator (Record<itemKey, payload>). Payloads are plumbing, not facets — they live in the unindexed envelope. Payload keys are caller-owned: the platform will never reserve names inside batch_items values.
Record<itemKey, payload>
batch_items
Envelope key: the payload accumulator (
Record<itemKey, payload>). Payloads are plumbing, not facets — they live in the unindexed envelope. Payload keys are caller-owned: the platform will never reserve names insidebatch_itemsvalues.