Is there a way to submit a transaction and don't wait for it to be confirmed or rejected? Because now when I run my nodejs script it does not stop to run until the transaction is confirmed or rejected. I am using function:

```
      async () => { 
   await web3.unlockAccount();
   await contract = web3.eth.Contract(Abi,Address);
    contract.methods.method(params).send({from: address});
    }

```

In theory it should not wait until the transaction is confirmed, but it does.