How to Access Bounding Box Coordinates of Plotly Mapbox figure?

Hello,

I am trying to access the coordinates pertaining to the bounding box of a Plotly Mapbox figure (essentially the min and max latitude and longitude in view at any given time). Does anyone know how such information about the figure might be accessed? I am working in Python + Dash, and am thinking a callback will need to be constructed to retrieve this information when a user either pans or zooms in on the Mapbox figure.

Any help would be greatly appreciated!

Minimal working example (will require a mapbox token)

import plotly.graph_objects as go
from jupyter_dash import JupyterDash
import dash_core_components as dcc
import dash_html_components as html


fig = go.Figure()
fig.add_trace(go.Scattermapbox(mode = "markers+lines"))

fig.update_layout(
    autosize=True,
    hovermode='closest',
    showlegend=True,
    margin=dict(t=20, b=0, l=0, r=0),
    mapbox=dict(
        # Access token comes from https://docs.mapbox.com/help/glossary/access-token/
        accesstoken= "Insert MapBox Token Key Here",
        bearing=0,
        pitch=0,
        zoom=3,
        style="satellite-streets"
    ),
)

app = JupyterDash(__name__)
app.layout = html.Div([
    dcc.Graph(figure=fig)
])

app.run_server(mode="jupyterlab",debug=True)

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