As per odoo convention, we call a model instance this way

Partner = self.env['res.partner']

IDE can not suggest the methods `res.partner` model has. One reason is, `res.partner` is the value of _name attribute of original pythonic Model class name. In Odoo development, that pythonic glass name has no use. But I suspect, this class name is somehow important for typing annotation. 

I would love to use this if I could import ResPartnerClass where ResPartnerClass is the pythonic Model class name of res.partner model, 

Partner: ResPartnerClass = self.env['res.partner'] 
 
But finding and importing ResPartnerClass is a non-trivial job to perform since it is an internal module.

Does anybody know the solution regarding this problem?