signPayload

Subshell.extension.signPayload is a proxy to web3FromAddress(address).signer.signPayload. It is defined to satisfy the Signer interface and should not be used directly.

On startup, if Subshell.extension is not null

api.setSigner(Subshell.extension)

will be called automatically to set it the default signer.

After that, you can sign with api.sign or tx.signAndSend