Swears at arguments Unique, nullable, primary_key, etc.?

Question

SQLite

There is a code where I create a database table.
I had a problem with sqlite, I did not see the tables through the terminal, well, let's omit this, and after my attempts to solve this problem, another one appeared.
when I write and the Unique argument is highlighted in yellow, and when driving on it, it says " Unexpected argument " If I remove it, then this error will go to the primary_key. when launching a web application, it gives an error: TypeError: Column() got an unexpected keyword argument 'unique' email = db.Column(db.String(80), unique = True)