split client.rs into modular files for traits and implementation

Author: JaskRendix

Cargo.toml

@@ -6,6 +6,7 @@ edition = "2021"
 [dependencies]
 tokio = { version = "1", features = ["full"] }
 anyhow = "1.0"
+async-trait = "0.1"
 
 [dev-dependencies]
 proptest = "1.10.0"