feat: aave v3 token

packages/contract-helpers/src/governance-v3/aave-token-v3/index.ts

@@ -0,0 +1,27 @@
+import { providers } from 'ethers';
+import { AaveTokenV3 } from '../typechain/AaveTokenV3';
+import { AaveTokenV3__factory } from '../typechain/factories/AaveTokenV3__factory';
+
+export enum GovernancePowerType {
+  VOTING,
+  PROPOSITION,
+}
+
+export class AaveTokenV3Service {
+  readonly _contract: AaveTokenV3;
+
+  constructor(tokenAddress: string, provider: providers.Provider) {
+    this._contract = AaveTokenV3__factory.connect(tokenAddress, provider);
+  }
+
+  public async balanceOf(user: string) {
+    return this._contract.balanceOf(user);
+  }
+
+  public async getPowerCurrent(
+    user: string,
+    delegationType: GovernancePowerType,
+  ) {
+    return this._contract.getPowerCurrent(user, delegationType);
+  }
+}