feat: add helper to set both input and data fields (#1019)

crates/rpc-types-eth/src/transaction/request.rs

@@ -503,11 +503,23 @@ impl TransactionInput {
         Self::maybe_input(Some(data))
     }
 
+    /// Creates a new instance with the given input data and sets both `input` and `data` fields to
+    /// the same value.
+    pub fn both(data: Bytes) -> Self {
+        Self::maybe_both(Some(data))
+    }
+
     /// Creates a new instance with the given input data.
     pub const fn maybe_input(input: Option<Bytes>) -> Self {
         Self { input, data: None }
     }
 
+    /// Creates a new instance with the given input data and sets both `input` and `data` fields to
+    /// the same value.
+    pub fn maybe_both(input: Option<Bytes>) -> Self {
+        Self { data: input.clone(), input }
+    }
+
     /// Consumes the type and returns the optional input data.
     #[inline]
     pub fn into_input(self) -> Option<Bytes> {