Datasets to power the Market Depth chart.
Both bids and asks are lists of 2-item tuples: [price, volume]

Additionally there are aggregate values provided for both sides of the book
and both quote and base currencies (in that order) under the totals key:

totals = [
[amount of quote currency in bids, amount of base currency in bids],
[amount of quote currency in asks, amount of base currency in asks],
]

A nice article explaining how the Depth Chart works:
https://hackernoon.com/depth-chart-and-its-significance-in-trading-bdbfbbd23d33

GET /api/public/market/ogc-usdt/depth/?format=api
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Cache-Control: public, s-maxage=1
Content-Type: application/json
Vary: Accept

{
    "bids": [],
    "asks": [
        [
            "60.9",
            "0.020337"
        ],
        [
            "61",
            "1.020337"
        ],
        [
            "65",
            "2.020337"
        ],
        [
            "70",
            "3.020337"
        ],
        [
            "72.89",
            "3.211808"
        ],
        [
            "72.9",
            "8.211808"
        ],
        [
            "73",
            "8.411808"
        ],
        [
            "73.679998",
            "8.611808"
        ],
        [
            "75",
            "9.611808"
        ],
        [
            "98.4",
            "19.611808"
        ],
        [
            "100",
            "235.659899"
        ],
        [
            "105",
            "236.659899"
        ],
        [
            "120",
            "237.556988"
        ],
        [
            "130",
            "238.556988"
        ],
        [
            "149",
            "238.566988"
        ],
        [
            "150",
            "248.566988"
        ],
        [
            "200",
            "325.666988"
        ],
        [
            "250",
            "330.666988"
        ],
        [
            "550",
            "340.666988"
        ],
        [
            "600",
            "350.666988"
        ],
        [
            "1000",
            "380.666988"
        ]
    ],
    "totals": [
        [
            0,
            0
        ],
        [
            "83282.980624",
            "380.666988"
        ]
    ]
}