This modified version of the CLASS code allows the computation of background quantities and perturbation equations for the interacting dark matter-dark energy scenario discussed in Lucca & Hooper 2020 (arXiv:2002.06127). This code can be used freely provided you cite the specific release paper (Lucca & Hooper 2020) and the original CLASS release paper (Blas et al. 2011).
The code has been edited by M. Lucca (mlucca AT ulb.ac.be). We refer to the main CLASS code wiki for installations instructions. The main modifications with respect to the original version are in input.c, background.c and .h, and perturbations.c (always enclosed in the comments "BEGIN/END MODIFICATION ML"). An input file test_iDMDE.ini has been created with the basic quantities needed in order to run the modified code.