fix: dont skip gas used ratio if empty (#40)

* workaround

* fix: actual fix

* fix: actual fix part 2

crates/rpc-types/src/eth/fee.rs

@@ -37,22 +37,20 @@ pub struct FeeHistory {
     /// # Note
     ///
     /// The `Option` is only for compatability with Erigon and Geth.
-    #[serde(skip_serializing_if = "Vec::is_empty")]
-    #[serde(default)]
+    /// Empty list is skipped only for compatability with Erigon and Geth.
+    #[serde(default, skip_serializing_if = "Vec::is_empty")]
     pub base_fee_per_gas: Vec<U256>,
     /// An array of block gas used ratios. These are calculated as the ratio
     /// of `gasUsed` and `gasLimit`.
     ///
     /// # Note
     ///
     /// The `Option` is only for compatability with Erigon and Geth.
-    #[serde(skip_serializing_if = "Vec::is_empty")]
-    #[serde(default)]
     pub gas_used_ratio: Vec<f64>,
     /// Lowest number block of the returned range.
     pub oldest_block: U256,
     /// An (optional) array of effective priority fee per gas data points from a single
     /// block. All zeroes are returned if the block is empty.
-    #[serde(default)]
+    #[serde(default, skip_serializing_if = "Option::is_none")]
     pub reward: Option<Vec<Vec<U256>>>,
 }