def METHOD_NAME() -> None:
    red_cred = RedshiftCredentials()
    assert red_cred.port == 5439
    assert red_cred.connect_timeout == 15
    assert RedshiftCredentials.__config_gen_annotations__ == ["port", "connect_timeout"]
    resolve_configuration(red_cred, explicit_value="postgres://loader:loader@localhost/dlt_data")
    assert red_cred.port == 5439