text: /* eslint-disable @typescript-eslint/require-await */
  /* eslint-disable @typescript-eslint/unbound-method */
  /* eslint-disable @typescript-eslint/no-var-requires */
  // Import the API & Provider and some utility functions
  const { ApiRx, WsProvider } = require('@polkadot/api');
  // Import the test keyring (already has dev keys for Alice, Bob, Charlie, Eve & Ferdie)
  const testKeyring = require('@polkadot/keyring/testing');
  const fs = require('fs');
  
  async function main () {
    // Initialise the provider to connect to the local node
    const provider = new WsProvider('ws://127.0.0.1:9944');
  
    // Create the API and wait until ready (optional provider passed through)
    const api = await ApiRx.create({ provider }).toPromise();
  
    // Retrieve the upgrade key from the chain state
    // TODO It seems like this promise doesn't resolve
    const adminId = await api.query.sudo.key().toPromise();
  
    // Find the actual keypair in the keyring (if this is an changed value, the key
    // needs to be added to the keyring before - this assumes we have defaults, i.e.
    // Alice as the key - and this already exists on the test keyring)
    const keyring = testKeyring.default();
    const adminPair = keyring.getPair(adminId.toString());
  
    // Retrieve the runtime to upgrade to
    const code = fs.readFileSync('./test.wasm').toString('hex');
    const proposal = api.tx.consensus.setCode(`0x${code}`);
  
    console.log(`Upgrading chain runtime from ${adminId}`);
  
    api.tx.sudo
      // Perform the actual chain upgrade via the sudo module
      .sudo(proposal)
      // Sign and send the proposal
      .signAndSend(adminPair)
      // Subscribe to overall result
      .subscribe(({ events = [], status }) => {
        // Log transfer events
        console.log('Proposal status:', status.type);
  
        if (status.isInBlock) {
          console.error('You have just upgraded your chain');
  
          console.log('Included at block hash', status.asInBlock.toHex());
          console.log('Events:');
  
          // Log system events once the chain update is finalised
          console.log(JSON.stringify(events.toHuman(), null, 2));
        } else if (status.isFinalized) {
          console.log('Finalized block hash', status.asFinalized.toHex());
  
          process.exit(0);
        }
      });
  }
  
  main().catch((error) => {
    console.error(error);
    process.exit(-1);
  });
  