ulfaslak/infostop ? reverse-engineered prompt

Build me a Python package that finds stop locations in mobility or GPS trace data, like the Infostop project described in the README.

I want to be able to pass in a single trajectory or a list of trajectories, with or without timestamps, and get back stop labels or stop locations. It should also include a simple way to plot the result on a map so I can visually inspect the stops. Please keep it easy to install and use, and make sure the main API feels straightforward, something like creating a model and calling fit_predict on the data.

If the project needs any helper code in C++ for speed, wire that in too, and make sure the tests pass. Also check the docs and examples so the package is usable right away. If you need to look up current docs or best practices online, go ahead.