chore: add doc strings

cmd/crates/soroban-rpc/src/txn.rs

@@ -20,17 +20,35 @@ pub struct Assembled {
     sim_res: SimulateTransactionResponse,
 }
 
+/// Represents an assembled transaction ready to be signed and submitted to the network.
 impl Assembled {
+    ///
+    /// Creates a new `Assembled` transaction.
+    ///
+    /// # Arguments
+    ///
+    /// * `txn` - The original transaction.
+    /// * `client` - The client used for simulation and submission.
     ///
     /// # Errors
+    ///
+    /// Returns an error if simulation fails or if assembling the transaction fails.
     pub async fn new(txn: &Transaction, client: &Client) -> Result<Self, Error> {
         let sim_res = Self::simulate(txn, client).await?;
         let txn = assemble(txn, &sim_res)?;
         Ok(Self { txn, sim_res })
     }
 
+    ///
+    /// Calculates the hash of the assembled transaction.
+    ///
+    /// # Arguments
+    ///
+    /// * `network_passphrase` - The network passphrase.
     ///
     /// # Errors
+    ///
+    /// Returns an error if generating the hash fails.
     pub fn hash(&self, network_passphrase: &str) -> Result<[u8; 32], xdr::Error> {
         let signature_payload = TransactionSignaturePayload {
             network_id: Hash(Sha256::digest(network_passphrase).into()),
@@ -39,8 +57,17 @@ impl Assembled {
         Ok(Sha256::digest(signature_payload.to_xdr(Limits::none())?).into())
     }
 
+    ///
+    /// Signs the assembled transaction.
+    ///
+    /// # Arguments
+    ///
+    /// * `key` - The signing key.
+    /// * `network_passphrase` - The network passphrase.
     ///
     /// # Errors
+    ///
+    /// Returns an error if signing the transaction fails.
     pub fn sign(
         self,
         key: &ed25519_dalek::SigningKey,
@@ -61,8 +88,17 @@ impl Assembled {
         }))
     }
 
+    ///
+    /// Simulates the assembled transaction.
+    ///
+    /// # Arguments
+    ///
+    /// * `tx` - The original transaction.
+    /// * `client` - The client used for simulation.
     ///
     /// # Errors
+    ///
+    /// Returns an error if simulation fails.
     pub async fn simulate(
         tx: &Transaction,
         client: &Client,
@@ -75,8 +111,18 @@ impl Assembled {
             .await
     }
 
+    ///
+    /// Handles the restore process for the assembled transaction.
+    ///
+    /// # Arguments
+    ///
+    /// * `client` - The client used for submission.
+    /// * `source_key` - The signing key of the source account.
+    /// * `network_passphrase` - The network passphrase.
     ///
     /// # Errors
+    ///
+    /// Returns an error if the restore process fails.
     pub async fn handle_restore(
         self,
         client: &Client,
@@ -98,10 +144,12 @@ impl Assembled {
         }
     }
 
+    /// Returns a reference to the original transaction.
     pub fn txn(&self) -> &Transaction {
         &self.txn
     }
 
+    /// Returns a reference to the simulation response.
     pub fn sim_res(&self) -> &SimulateTransactionResponse {
         &self.sim_res
     }