Downloads Ledgers in Bulk

var options = new RestClientOptions("https://apitest.nilvera.com")
{
    MaxTimeout = -1
};
var client = new RestClient(options);
var request = new RestRequest("/eledger/Documents/Period/Download/Bulk", Method.Post);
request.AddHeader("Content-Type", "application/json");
request.AddHeader("Authorization", "Bearer <API KEY>");
var body = @"
{
    ""Periods"": [
        {
            ""Year"": ""string"",
            ""Period"": ""string""
        }
    ]
}";
request.AddStringBody(body, DataFormat.Json);
RestResponse response = await client.ExecuteAsync(request);
Console.WriteLine(response.Content);