import { Volume } from 'memfs';

function foo(volume: Volume) { }
//                   ^^^^^^ 'Volume' refers to a value, but is being used as a type here. Did you mean 'typeof Volume'?

// NOTE: the suggestion in the error is wrong and will not allow you to assign an instance
function bar(volume: typeof Volume) { }
bar(new Volume());
//  ^^^^^^^^^^^^ Argument of type 'Volume' is not assignable to parameter of type 'typeof Volume'.
//    Type 'Volume' is missing the following properties from type 'typeof Volume': prototype, fd