'Program.Program()': new protected member declared in sealed type

Non-nullable property 'SenderEmail' must contain a non-null value when exiting constructor. Consider declaring the property as nullable.

Non-nullable property 'EmailAddress' must contain a non-null value when exiting constructor. Consider declaring the property as nullable.

Non-nullable property 'AgentId' must contain a non-null value when exiting constructor. Consider declaring the property as nullable.

Non-nullable property 'Label' must contain a non-null value when exiting constructor. Consider declaring the property as nullable.

Non-nullable property 'BaseUrl' must contain a non-null value when exiting constructor. Consider declaring the property as nullable.

Non-nullable property 'TokenEndpoint' must contain a non-null value when exiting constructor. Consider declaring the property as nullable.

Non-nullable property 'ClientId' must contain a non-null value when exiting constructor. Consider declaring the property as nullable.

Non-nullable property 'ClientSecret' must contain a non-null value when exiting constructor. Consider declaring the property as nullable.