src/serial: add necessery imports for tests

src/serial/src/lib.rs

@@ -595,6 +595,7 @@ impl Decodable for Cow<'static, str> {
 #[cfg(test)]
 mod tests {
     use super::{endian::*, *};
+    use futures_lite::AsyncWriteExt;
 
     #[test]
     fn serialize_int_test() {

src/serial/src/types/bridgetree.rs

@@ -315,7 +315,7 @@ impl<
 
 #[cfg(test)]
 mod tests {
-    use crate::{deserialize, serialize, SerialDecodable, SerialEncodable};
+    use crate::{async_trait, deserialize, serialize, SerialDecodable, SerialEncodable};
     use bridgetree::{BridgeTree, Hashable, Level};
 
     #[derive(Clone, Debug, PartialEq, Eq, PartialOrd, Ord, SerialEncodable, SerialDecodable)]