/// <summary>
/// Signs in to the service.
/// </summary>
/// <param name="username">The username.</param>
/// <param name="password">The password.</param>
public void SignIn(string username, string password)
{
_contacts.Clear();
_contactFactory = new ContactFactory();
for (var i = 0; i < _contactsToGenerate; i++)
{
_contacts.Add(_contactFactory.CreateContact());
}
}
