use crate::;
// A hierarchical deterministic (HD) Sapling spending key with derivation information.
//
// `SaplingExtendedSpendingKey` extends the core spending key functionality by adding the necessary
// components for hierarchical deterministic (HD) key derivation according to [ZIP 32]. This
// enables the creation of structured wallet hierarchies with parent-child key relationships.
//
// This key is encoded as defined in https://zips.z.cash/zip-0032#sapling-extended-spending-keys
//
// [ZIP 32]: https://zips.z.cash/zip-0032
blob!;
blob_envelope!;