diff --git a/Cargo.lock b/Cargo.lock
index 3869390..7de73dd 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -307,6 +307,7 @@ dependencies = [
  "env_logger",
  "futures-util",
  "log",
+ "thiserror",
  "tokio",
  "tokio-tungstenite",
  "tungstenite",
diff --git a/Cargo.toml b/Cargo.toml
index 572e84e..658d197 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -12,3 +12,4 @@ tokio = { version = "1.14.0", features = ["full"] }
 futures-util = "0.3.17"
 tokio-tungstenite = "0.16.0"
 tungstenite = "0.16.0"
+thiserror = "1.0.30"
diff --git a/src/event.rs b/src/event.rs
new file mode 100644
index 0000000..5f3d473
--- /dev/null
+++ b/src/event.rs
@@ -0,0 +1 @@
+pub struct Event {}
diff --git a/src/lib.rs b/src/lib.rs
new file mode 100644
index 0000000..1610d23
--- /dev/null
+++ b/src/lib.rs
@@ -0,0 +1,2 @@
+pub mod error;
+pub mod event;