sdk: get/setPauser for transceivers

Author: kcsongor

evm/ts/src/ntt.ts

@@ -67,6 +67,17 @@ export class EvmNttWormholeTranceiver<N extends Network, C extends EvmChains>
     yield this.manager.createUnsignedTx(tx, "WormholeTransceiver.registerPeer");
   }
 
+  async getPauser(): Promise<AccountAddress<C> | null> {
+    const pauser = await this.transceiver.pauser();
+    return new EvmAddress(pauser) as AccountAddress<C>;
+  }
+
+  async *setPauser(pauser: AccountAddress<C>) {
+    const canonicalPauser = canonicalAddress({chain: this.manager.chain, address: pauser});
+    const tx = await this.transceiver.transferPauserCapability.populateTransaction(canonicalPauser);
+    yield this.manager.createUnsignedTx(tx, "WormholeTransceiver.setPauser");
+  }
+
   async getPeer<C extends Chain>(chain: C): Promise<ChainAddress<C> | null> {
     const peer = await this.transceiver.getWormholePeer(toChainId(chain));
     const peerAddress = Buffer.from(peer.substring(2), 'hex');

sdk/definitions/src/ntt.ts

@@ -356,6 +356,10 @@ export interface NttTransceiver<
 
   getPeer<C extends Chain>(chain: C): Promise<ChainAddress<C> | null>;
 
+  setPauser(newPauser: AccountAddress<C>, payer?: AccountAddress<C>): AsyncGenerator<UnsignedTransaction<N, C>>;
+
+  getPauser(): Promise<AccountAddress<C> | null>;
+
   /**
    * receive calls the `receive*` method on the transceiver
    *

solana/ts/sdk/ntt.ts

@@ -53,6 +53,14 @@ export class SolanaNttWormholeTransceiver<N extends Network, C extends SolanaCha
     readonly address: PublicKey
   ) {}
 
+  async getPauser(): Promise<AccountAddress<C> | null> {
+    return null
+  }
+
+  async *setPauser(_newPauser: AccountAddress<C>, _payer: AccountAddress<C>) {
+    throw new Error("Method not implemented.");
+  }
+
   async *receive(_attestation: WormholeNttTransceiver.VAA) {
     // TODO: this is implemented below (in the transceiver code). it could get
     // tricky in general with multiple transceivers, as they might return an