Concurrency of key

[AssCasc]

According to the getting started, api-key and pertner-key must be stored in "Configuration.Default.ApiKey" dictionary; in this way the kays are shared to all library.
In my case i need use the library in large shared service with hundreds of Brevo connections. You will understand that I cannot use shared keys throughout the library but each connection requires its own keys. I need something like that:

using System;
using System.Diagnostics;
using sib_api_v3_sdk.Api;
using sib_api_v3_sdk.Client;
using sib_api_v3_sdk.Model;

namespace Example
{
    public class Example
    {
        public void main()
        {

              var apiInstance = new AccountApi(api-key, partner-key);

            try
            {
                // Get your account information, plan and credits details
                GetAccount result = apiInstance.GetAccount();
                Debug.WriteLine(result);
            }
            catch (Exception e)
            {
                Debug.Print("Exception when calling AccountApi.GetAccount: " + e.Message );
            }

        }
    }
}

Is this possible?