diff --git a/ethers-core/src/main/kotlin/io/ethers/core/Extensions.kt b/ethers-core/src/main/kotlin/io/ethers/core/Extensions.kt
new file mode 100644
index 0000000..77db661
--- /dev/null
+++ b/ethers-core/src/main/kotlin/io/ethers/core/Extensions.kt
@@ -0,0 +1,11 @@
+package io.ethers.core
+
+import io.ethers.core.types.Bytes
+import io.ethers.rlp.RlpDecodable
+
+/**
+ * Decode RLP-encoded [data] and return instance of [T], or null if decoding fails.
+ */
+fun <T> RlpDecodable<T>.rlpDecode(data: Bytes): T? {
+    return rlpDecode(data.asByteArray())
+}
diff --git a/ethers-providers/src/main/kotlin/io/ethers/providers/middleware/EthApi.kt b/ethers-providers/src/main/kotlin/io/ethers/providers/middleware/EthApi.kt
index d8d1c2e..990e218 100644
--- a/ethers-providers/src/main/kotlin/io/ethers/providers/middleware/EthApi.kt
+++ b/ethers-providers/src/main/kotlin/io/ethers/providers/middleware/EthApi.kt
@@ -349,7 +349,8 @@ interface EthApi {
     /**
      * Get gas fee history for block range between [lastBlockName] and ([lastBlockName] - [blockCount] + 1).
      */
-    fun getFeeHistory(blockCount: Long, lastBlockName: BlockId.Name) = getFeeHistory(blockCount, lastBlockName, emptyList())
+    fun getFeeHistory(blockCount: Long, lastBlockName: BlockId.Name) =
+        getFeeHistory(blockCount, lastBlockName, emptyList())
 
     /**
      * Get gas fee history for block range between [lastBlockNumber] and ([lastBlockNumber] - [blockCount] + 1).
@@ -359,7 +360,8 @@ interface EthApi {
     /**
      * Get gas fee history for block range between [lastBlockNumber] and ([lastBlockNumber] - [blockCount] + 1).
      */
-    fun getFeeHistory(blockCount: Long, lastBlockNumber: BlockId.Number) = getFeeHistory(blockCount, lastBlockNumber, emptyList())
+    fun getFeeHistory(blockCount: Long, lastBlockNumber: BlockId.Number) =
+        getFeeHistory(blockCount, lastBlockNumber, emptyList())
 
     /**
      * Get gas fee history for block range between [lastBlockName] and ([lastBlockName] - [blockCount] + 1).
@@ -496,6 +498,11 @@ interface EthApi {
      */
     fun sendRawTransaction(signedTransaction: TransactionSigned) = sendRawTransaction(signedTransaction.toRlp())
 
+    /**
+     * Submit signed transaction bytes.
+     */
+    fun sendRawTransaction(signedTransaction: Bytes) = sendRawTransaction(signedTransaction.asByteArray())
+
     /**
      * Submit signed transaction bytes.
      */
diff --git a/ethers-rlp/src/main/kotlin/io/ethers/rlp/RlpDecodable.kt b/ethers-rlp/src/main/kotlin/io/ethers/rlp/RlpDecodable.kt
index f3f1903..3138b25 100644
--- a/ethers-rlp/src/main/kotlin/io/ethers/rlp/RlpDecodable.kt
+++ b/ethers-rlp/src/main/kotlin/io/ethers/rlp/RlpDecodable.kt
@@ -2,7 +2,7 @@ package io.ethers.rlp
 
 interface RlpDecodable<T> {
     /**
-     * Decode [data] and return instance of [T].
+     * Decode RLP-encoded [data] and return instance of [T], or null if decoding fails.
      */
     fun rlpDecode(data: ByteArray): T? {
         if (data.isEmpty()) {