Flutter provider functions

final accountsRes = await airService.sendEthereumRpcRequest(
  EthereumRpcRequest(method: 'eth_accounts', params: []),
);
final chainRes = await airService.sendEthereumRpcRequest(
  EthereumRpcRequest(method: 'eth_chainId', params: []),
);

final address = await airService.getAbstractAccountAddress();
if (address != null) {
  final res = await airService.sendEthereumRpcRequest(
    EthereumRpcRequest(
      method: 'eth_getBalance',
      params: [address, 'latest'],
    ),
  );
}

await airService.sendEthereumRpcRequest(
  EthereumRpcRequest(
    method: 'wallet_switchEthereumChain',
    params: [
      {'chainId': '0x1'},
    ],
  ),
);