Hi guys. I'm creating a custom module which is supposed to inherit from a model (Custom Object) created with odoo studio. 
Yes, I know I can just develop the module entirely with code but for some reason I can't touch the module created with Studio, therefore I can only extends its functionalities.
I'm triying the following code but isn't working. Any idea?

notes: 
    - "x_estimate_request" does exist as a model (custom object by odoo studio)
    

class EstimateRequest(models.Model):
    _inherit = "x_estimate_request"    
    _description = "Estimate Request Inherited"
    
     some_field = fields.Char(string="Test Field")