feat: initialize Kurdistan SDK - independent fork of Polkadot SDK

bridges/snowbridge/pallets/outbound-queue-v2/runtime-api/src/lib.rs

@@ -0,0 +1,18 @@
+// SPDX-License-Identifier: Apache-2.0
+// SPDX-FileCopyrightText: 2023 Snowfork <hello@snowfork.com>
+
+//! Ethereum Outbound Queue V2 Runtime API
+//!
+//! * `prove_message`: Generate a merkle proof for a committed message
+
+#![cfg_attr(not(feature = "std"), no_std)]
+use frame_support::traits::tokens::Balance as BalanceT;
+use snowbridge_merkle_tree::MerkleProof;
+
+sp_api::decl_runtime_apis! {
+	pub trait OutboundQueueV2Api<Balance> where Balance: BalanceT
+	{
+		/// Generate a merkle proof for a committed message identified by `leaf_index`.
+		fn prove_message(leaf_index: u64) -> Option<MerkleProof>;
+	}
+}