function makeBox<T>(value: T) {
    return { value };
};

const makeStringBox = makeBox<string>;  // (value: string) => { value: string }
const stringBox = makeStringBox('abc');  // { value: string }

const ErrorMap = Map<string, Error>;  // new () => Map<string, Error>
const errorMap = new ErrorMap();  // Map<string, Error>

interface TSInstantiationExpression {
  type: "TSInstantiationExpression";
  expression: Expression;
  typeParameters: TSTypeParameterInstantiation;
}