* A hash; the 32-byte output of a hashing algorithm. * * This struct is used most often in `solana-sdk` and related crates to contain * a [SHA-256] ha

* A directive for a single invocation of a Solana program. * * An instruction specifies which program it is calling, which accounts it may * read or m

* A Solana transaction message (legacy). * * See the [`message`] module documentation for further description. * * [`message`]: crate::message * * Som

* The address of a [Solana account][acc]. * * Some account addresses are [ed25519] public keys, with corresponding secret * keys that are managed off-