Custom Static Methods on a Model Class

[lucasm08]

Hello, I'm trying to use redux-orm with Typescript, but I ran into an error when I tried use a custom static methods I that I added to a model Class. I'm pretty new to typescript, maybe I'm doing something wrong.

Here are some files

ProductGroup Model:

export class ProductGroup extends Model<typeof ProductGroup, ProductGroupFields> {
    static fields = {
        id: attr(),
        name: attr(),
    };

    static options = {
        idAttribute: "id" as const,
    };

    static parse(productGroupData: GroupFields) {
        return this.upsert(productGroupData);
    }

    toJSON() {
        return { ...this.ref };
    }
}

Usage:

    const session = orm.session(state);

    const {products, contacts} = payload;

    const {ContactGroup,  ProductGroup} = session;


    [ContactGroup, ProductGroup].forEach(modelType => {
        modelType.all().toModelArray().forEach(model => model.delete());
    });

    if(contacts) {
        // tslint:disable-next-line: no-angle-bracket-type-assertion
        contacts.forEach(contact => ContactGroup.parse(contact)); //<------------------- Error. Property 'parse' does not exist on type 'ModelType<ContactGroup>'.
    }

Expectation:
I expect parse to be available on model classes for this Session.

Maybe it's a misuse of typescript, but I would really appreciate if someone can help.