Convert checkpoint state to model

Hello! After training I have 4 files (checkpoint, fns.ckpt, fns.ckpt.index, fns.ckpt.meta) in checkpoint directory, 200 Mb in total. And to evaluate picture with learned style i need all these 4 files, but your pretrained models are single files of 20 Mb each one. How can I convert my 4 files to such a model file? Thank you for your attention!