Cleanup implementation

crates/node/src/lib.rs

@@ -1,5 +1,6 @@
 //! This crate implements the testing nodes.
 
+use alloy::{network::TxSigner, signers::Signature};
 use revive_dt_config::Arguments;
 use revive_dt_node_interaction::EthereumNode;
 
@@ -14,7 +15,10 @@ pub const GENESIS_JSON: &str = include_str!("../../../genesis.json");
 /// An abstract interface for testing nodes.
 pub trait Node: EthereumNode {
     /// Create a new uninitialized instance.
-    fn new(config: &Arguments) -> Self;
+    fn new(
+        config: &Arguments,
+        additional_signers: impl IntoIterator<Item: TxSigner<Signature> + Send + Sync + 'static>,
+    ) -> Self;
 
     /// Spawns a node configured according to the genesis json.
     ///