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function createERC20Client (asset, wallet) {
const assetConfig = config.assets[asset]
const erc20Client = new Client()
erc20Client.addProvider(new EthereumRpcProvider(
assetConfig.rpc.url
))
if (wallet === 'metamask') {
erc20Client.addProvider(new EthereumMetaMaskProvider(web3.currentProvider, EthereumNetworks[assetConfig.network]))
} else if (wallet === 'ethereum_ledger') {
erc20Client.addProvider(new EthereumLedgerProvider({network: EthereumNetworks[assetConfig.network]}))
}
erc20Client.addProvider(new EthereumErc20Provider(assetConfig.contractAddress))
erc20Client.addProvider(new EthereumErc20SwapProvider())
return erc20Client
}