Modifications to serde

eth2/types/src/fork.rs

@@ -1,4 +1,7 @@
-use crate::{test_utils::{fork_from_hex_str, TestRandom}, ChainSpec, Epoch};
+use crate::{
+    test_utils::{fork_from_hex_str, TestRandom},
+    ChainSpec, Epoch,
+};
 use int_to_bytes::int_to_bytes4;
 use rand::RngCore;
 use serde_derive::{Deserialize, Serialize};

eth2/types/src/test_utils/serde_utils.rs

@@ -1,5 +1,5 @@
-use serde::{Deserialize, Deserializer};
 use serde::de::Error;
+use serde::{Deserialize, Deserializer};
 
 pub fn u8_from_hex_str<'de, D>(deserializer: D) -> Result<u8, D::Error>
 where