import neptune.new as neptune
​
run = neptune.init(project='my_workspace/my_project')

import altair as alt
from vega_datasets import data
​
source = data.cars()
​
brush = alt.selection(type='interval')
​
points = alt.Chart(source).mark_point().encode(
    x='Horsepower:Q',
    y='Miles_per_Gallon:Q',
    color=alt.condition(brush, 'Origin:N', alt.value('lightgray'))
).add_selection(
    brush
)
​
bars = alt.Chart(source).mark_bar().encode(
    y='Origin:N',
    color='Origin:N',
    x='count(Origin):Q'
).transform_filter(
    brush
)
​
chart = points & bars

run['visuals/altair-fig'] = neptune.types.File.as_html(chart)