How many language code of method is used for the github address "https://github.com/managedfusion/managedfusion.git
"?
language code of method refers to Lang; github address refers to Url; Url = 'https://github.com/managedfusion/managedfusion.git';
SELECT COUNT(DISTINCT T3.Lang) FROM Repo AS T1 INNER JOIN Solution AS T2 ON T1.Id = T2.RepoId INNER JOIN Method AS T3 ON T2.Id = T3.SolutionId WHERE T1.Url = 'https://github.com/managedfusion/managedfusion.git'