How to use the @web3-react/ledger-connector.LedgerConnector function in @web3-react/ledger-connector

pollingInterval: POLLING_INTERVAL
})

export const walletconnect = new WalletConnectConnector({
  rpc: { 1: RPC_URLS[1] },
  bridge: 'https://bridge.walletconnect.org',
  qrcode: true,
  pollingInterval: POLLING_INTERVAL
})

export const walletlink = new WalletLinkConnector({
  url: RPC_URLS[1],
  appName: 'web3-react example'
})

export const ledger = new LedgerConnector({ chainId: 1, url: RPC_URLS[1], pollingInterval: POLLING_INTERVAL })

export const trezor = new TrezorConnector({
  chainId: 1,
  url: RPC_URLS[1],
  pollingInterval: POLLING_INTERVAL,
  manifestEmail: 'dummy@abc.xyz',
  manifestAppUrl: 'http://localhost:1234'
})

export const frame = new FrameConnector({ supportedChainIds: [1] })

export const authereum = new AuthereumConnector({ chainId: 42 })

export const fortmatic = new FortmaticConnector({ apiKey: process.env.FORTMATIC_API_KEY as string, chainId: 4 })

export const portis = new PortisConnector({ dAppId: process.env.PORTIS_DAPP_ID as string, networks: [1, 100] })