How to include forcing data for ODE models?

[palderman]

First, this package is a major contribution towards using ODE models with Stan. Thank you!

My usage of ODE models usually involves equations that are forced by a vector of weather variables like solar radiation or air temperature measured at each time step. I don't see any way to pass time-step-specific data into a solver with the current version of this package. Am I missing that somewhere?

I would be very interested in collaborating to add this capability. Do you have any interest in working together on that? Would you at least be able to point me in the right direction to get started?