One item's provider directives (e.g. a Pinecone namespace), derived by the provider from the item's fields plus any pre-resolved field paths. Undefined when the index has no ProviderConfig. MAY THROW: a provider rejects a record it cannot route.
Optional
One item's provider directives (e.g. a Pinecone namespace), derived by the provider from the item's fields plus any pre-resolved field paths. Undefined when the index has no ProviderConfig. MAY THROW: a provider rejects a record it cannot route.