const { wallet, publicKey, connected, signMessage, signIn } = useWallet();
const connectWallet = () => {
  // After selecting trust wallet from modal
  // fetch SIWS message from backend
  const input = await fetchSIWSMessage(address);
  
  if (signIn && typeof signIn === 'function') {
      const output = await signIn(input);  <-- Fails here with exception
      await verifySIWSSignature(input, output);
    } else if (typeof signMessage === 'function') {
      const msg = new TextEncoder().encode(input.statement);
      const signedMessageSignature = await signMessage(msg);
  
      const output: SolanaSignInOutput = {
        signature: signedMessageSignature,
        signedMessage: signedMessageSignature,
        account: {
          address: publicKey.toBase58(),
          publicKey: publicKey.toBytes(),
          chains: [],
          features: [],
        },
      };
      await verifyMessageSignature(input, output);
    } else {
      throw new Error('Wallet does not support message signing');
    }
}