Noted that we're signing as well as building tx in the method signature

side-node/src/bitcoin/clients/esplora.rs

@@ -34,7 +34,7 @@ impl EsploraWallet {
     /// Does NOT send it, you must call `broadcast` to do that.
     ///
     /// We could split the creation and signing easily if needed.
-    pub(crate) fn build_send_tx(
+    pub(crate) fn build_and_sign_send_tx(
         &mut self,
         recipient: Address,
         amount: Amount,

side-node/src/bitcoin/driver.rs

@@ -10,7 +10,9 @@ use crate::bitcoin::clients;
 ///
 /// Also, it very handily works with the mutinynet.com esplora server, which is configured
 /// with 30 second block times.
-pub(crate) async fn run() -> Result<(), anyhow::Error> {
+pub(crate) async fn run() -> Result<(), anyhow::Error> {}
+
+async fn simple_transfer() -> Result<(), anyhow::Error> {
     let mut dave = clients::esplora::create_wallet("dave", Network::Signet)?;
     let mut sammy = clients::esplora::create_wallet("sammy", Network::Signet)?;
 
@@ -51,7 +53,7 @@ pub(crate) async fn run() -> Result<(), anyhow::Error> {
         std::process::exit(0);
     }
 
-    let tx = dave.build_send_tx(sammy_address, send_amount)?;
+    let tx = dave.build_and_sign_send_tx(sammy_address, send_amount)?;
     dave.broadcast(&tx).await?;
 
     Ok(())