OnePassword.NET Nuget package and CLI v2

I'm new to 1Password and trying to use the OnePassword.NET Nuget package with CLI v2 in a Visual Studio C# project.

My code is as follows:

using OnePassword;

try
{

                var onePassword = new OnePasswordManager();

                var domain = "my.1password.com";
                var email = "myemail@abc.com";
                var secretKey = "Key";
                var password = "Pwd";


                onePassword.AddAccount(domain, email, secretKey, password);
                onePassword.SignIn(password);* (GET ERROR HERE: No accounts configured for use with 1Password CLI -- )
            }
        }
        catch (Exception ex)
        {
            _logger.LogError(ex, ex.Message);
        }

1. My question is how and where do I need to configure the account before I could use it with 1Password CLI.

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1Password Version: Not Provided
Extension Version: Not Provided
OS Version: Windows 10 Pro
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