diff --git a/testing/examples/author_tests.rs b/testing/examples/author_tests.rs
index fa1063859..7d21ba3b8 100644
--- a/testing/examples/author_tests.rs
+++ b/testing/examples/author_tests.rs
@@ -26,14 +26,7 @@ use substrate_api_client::{
 	XtStatus,
 };
 
-// Define an extrinsic signer type which sets the generic types of the `GenericExtrinsicSigner`.
-// This way, the types don't have to be reassigned with every usage of this type and make
-// the code better readable.
 type ExtrinsicSigner = GenericExtrinsicSigner<Pair, Signature, Runtime>;
-
-// To access the ExtrinsicAddress type of the ExtrinsicSigner, we need to access the trait `SignExtrinsic`.
-// As this is very verbose, we define a simple type here and, at the same time, assign the
-// AccountId type of the `SignExtrinsic` trait.
 type ExtrinsicAddressOf<Signer> = <Signer as SignExtrinsic<AccountId>>::ExtrinsicAddress;
 
 #[tokio::main]
@@ -47,7 +40,7 @@ async fn main() {
 	let bob: ExtrinsicAddressOf<ExtrinsicSigner> = AccountKeyring::Bob.to_account_id().into();
 
 	// Submit extrinisc.
-	let xt0 = api.balance_transfer(bob.clone().into(), 1000);
+	let xt0 = api.balance_transfer(bob.clone(), 1000);
 	let _tx_hash = api.submit_extrinsic(xt0).unwrap();
 
 	// Submit and watch.