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discounted_product = 12275195905
products_needed = [592406273]
products_seen = []
Input.cart.line_items.each do |line_item|
product = line_item.variant.product
products_seen << product.id if products_needed.include?(product.id)
end
Input.cart.line_items.each do |line_item|
product = line_item.variant.product
next unless product.id == discounted_product
line_item.change_line_price(line_item.line_price * 0.0, message: "Free Product with Purchase") if products_seen.uniq.sort == products_needed.uniq.sort
end
Output.cart = Input.cart
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