Enabling a shapely polygon as valid input for the 'polygon' parameter in network config data

[LiekeMeijer]

Kind of request

None

Enhancement Description

Besides being able to specify a path to a polygon geojson that is saved to my local machine, I would like to be able to put a shapely polygon as input in the network config data for downloading a road network from OpenStreetMap.

Right now, if I make a shapely polygon based on the flood map extent, I first need to save this polygon to my local machine and then provide the path to that file as input for the OSM download. This is a bit counter-intuitive, as I would just like to use the shapely polygon directly without having to first write and then read again.

Use case

all notebooks where we make the study area flexibly based on flood map extent.

Additional Context

No response