activerecord - Rails, including more than one relationship in the scope of a model -

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i have following scope returns products have branch_id = 1, , have attribute enabled set true. 

scope :enabled_product, -> {includes(:products).where("products.branch_id = ?", 1).where(products: {enabled: true})}

product has many many relationship category. how can include categories each product in scope?

includes(:products => [:categories])

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