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    "title": "Amazon Best Sellers Tracker — Rank Movement & New Entrants",
    "description": "Track Amazon Best Sellers, New Releases and Movers & Shakers across 16 marketplaces, and get what CHANGED: new entrants, climbers, fallers and drop-outs with a signal explaining each move. Currency is read from the page rather than assumed, because Amazon geolocates prices.",
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            "title": "Categories",
            "type": "array",
            "description": "Category slugs (electronics, books, toys-and-games) or full Best Sellers URLs. Find a slug in any Best Sellers page URL.",
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              "type": "string"
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              "de",
              "fr",
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            "minimum": 1,
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            "description": "Hard cap on products returned. You are never charged beyond this.",
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