public Task<DescribeEgressOnlyInternetGatewaysResponse> DescribeEgressOnlyInternetGatewaysAsync(DescribeEgressOnlyInternetGatewaysRequest request, System.Threading.CancellationToken cancellationToken = default(CancellationToken))
{
var marshaller = new DescribeEgressOnlyInternetGatewaysRequestMarshaller();
var unmarshaller = DescribeEgressOnlyInternetGatewaysResponseUnmarshaller.Instance;
return InvokeAsync<DescribeEgressOnlyInternetGatewaysRequest,DescribeEgressOnlyInternetGatewaysResponse>(request, marshaller,
unmarshaller, cancellationToken);
}