# File lib/aflexi/configuration.rb, line 12
    def login_as(new_username, new_secret)
      old_username = self.username
      old_secret = self.secret
      self.username = new_username
      self.secret = new_secret
      Aflexi::Base.client.call "auth.authenticate", username, secret
      yield
    ensure
      self.username = old_username
      self.secret = old_secret
    end