import geopandas
import pandas as pd

dict_data = {
    'LATITUDE': {0: 47.001, 1: 47.002, 2: 47.003},
    'LONGITUDE': {0: 6.001, 1: 6.002, 2: 6.003},
}

df = pd.DataFrame(dict_data)

gdf = geopandas.GeoDataFrame(
    data=df,
    crs='EPSG:4326',
    geometry=geopandas.points_from_xy(df['LONGITUDE'], df['LATITUDE']),
)

gdf.explore(
    style_kwds={'radius': 20},
    highlight_kwds={'style_function': lambda x: {'fillColor': 'red'}},
)

    if highlight:
        if "fillOpacity" not in highlight_kwds:
            highlight_kwds["fillOpacity"] = 0.75

        def _style_highlight(x):
            return {**highlight_kwds}

        highlight_function = _style_highlight
    else:
        highlight_function = None

    if highlight:
        if "fillOpacity" not in highlight_kwds:
            highlight_kwds["fillOpacity"] = 0.75
        if "style_function" in highlight_kwds:
            highlight_kwds_function = highlight_kwds["style_function"]
            if not callable(highlight_kwds_function):
                raise ValueError("'style_function' has to be a callable")
            highlight_kwds.pop("style_function")
        else:
            highlight_kwds_function = lambda x: {}
            
        def _style_highlight(x):
            return {**highlight_kwds, **highlight_kwds_function(x)}

        highlight_function = _style_highlight
    else:
        highlight_function = None