import Onboard from '@bn-onboard/core'
import mewModule from '@bn-onboard/mew'

const mew = mewModule()

const onboard = Onboard({
  // ... other Onboard options
  wallets: [
    mew
    //... other wallets
  ]
})

const connectedWallets = await onboard.connectWallet()
console.log(connectedWallets)