Time Series Coverage API

{  "group": "timeseries",  "title": "Time Series Coverage",  "description": "How many dated series each category publishes, and that values stay in the stored currency.",  "as_of": null,  "span": null,  "pipeline": "Series counts walk the compiled time series catalog (the same categories as Time Series Metrics). The request does not read the series tables.",  "source": "django.timeseries_catalog",  "stats": [    {      "id": "series",      "label": "Series",      "value": 1535    },    {      "id": "categories",      "label": "Categories",      "value": 7    },    {      "id": "companies",      "label": "Companies per call",      "value": 8    },    {      "id": "series_cap",      "label": "Series per call",      "value": 8    }  ],  "charts": [    {      "id": "by_category",      "title": "Series by category",      "description": "Dated series Time Series Metrics can search.",      "kind": "bar",      "points": [        {          "label": "Financial Ratios",          "value": 580        },        {          "label": "Balance Sheet",          "value": 306        },        {          "label": "Key Metrics",          "value": 280        },        {          "label": "Cash Flow Statement",          "value": 180        },        {          "label": "Income Statement",          "value": 165        },        {          "label": "Price & Volume",          "value": 21        },        {          "label": "Dividends & Buybacks",          "value": 3        }      ]    }  ],  "tables": [],  "notes": [    {      "id": "currency",      "title": "Stored currency",      "body": "Points stay in the currency stored on the series. This group does not convert."    },    {      "id": "window",      "title": "The window is the request",      "body": "range is 3M, 1Y, 3Y, 5Y, 10Y, or ALL. from and to replace range. Empty points means that company has no values in the window."    }  ]}