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  "tool": "viz_render",
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    "brand": "Harbor",
    "theme": "light",
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        "pallets": 640
      },
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        "warehouse": "North Yard",
        "pallets": 760
      },
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        "warehouse": "Harbor Cold Store",
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        "type": "quantitative"
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  "error": null,
  "output": {
    "status": "ok",
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          "fontSize": 24,
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          "gridColor": "#E1E6E7",
          "domainColor": "#CFD6D7",
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          "type": "quantitative",
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      },
      "width": 400,
      "height": 300
    },
    "a11yDescription": "Bar chart of pallets by warehouse.",
    "warnings": [],
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      "includeNormalizedSpec": true,
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      "mark": "MarkBar",
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            "warehouse": "Lakeside Distribution",
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            "warehouse": "North Yard",
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        "y": {
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    "a11y": {
      "narrative": {
        "summary": "Bar chart compares Warehouse; Harbor Cold Store leads at 2,400 while Lakeside Distribution is lowest at 640.",
        "keyFindings": [
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          "Low Pallets: Pallets 640 (Lakeside Distribution)"
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      },
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            "isNumeric": false
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                "field": "warehouse",
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                "field": "pallets",
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          },
          {
            "cells": [
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                "text": "2,400"
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    },
    "specRef": "viz.render-7a542bf4",
    "specRefCreatedAt": "2026-10-08T15:03:14.146Z",
    "specRefExpiresAt": "2026-10-08T15:33:14.146Z",
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}