Is it possible to include a value formatter in a column type?

Dash Python
1

In the following example app, only the cell contents of col1 are correctly formatted to three decimal places. The AG Grid docs list valueFormatter as a possible key of column types though. Removing the {"function": ...} layer does not help. Am I doing something wrong?

import numpy as np
import pandas as pd
from dash import Dash
from dash_ag_grid import AgGrid

columnDefs = [
    {
        "field": "col1",
        "type": "rightAligned",
        "valueFormatter": {"function": "d3.format('.3f')(params.value)"},
    },
    {
        "field": "col2",
        "type": "float",
    },
]

dashGridOptions = {
    "columnTypes": {
        "float": {
            "cellClass": "ag-right-aligned-cell",
            "headerClass": "ag-right-aligned-header",
            "valueFormatter": {"function": "d3.format('.3f')(params.value)"},
        }
    }
}

df = pd.DataFrame(
    {
        "col1": np.random.rand(5),
        "col2": np.random.rand(5),
    }
)

grid = AgGrid(
    columnDefs=columnDefs,
    dashGridOptions=dashGridOptions,
    rowData=df.to_dict("records"),
)

app = Dash()
app.layout = [grid]

if __name__ == "__main__":
    app.run(debug=True)