How to convert the new t5x models to huggingface transformers

Hey there, so i have pretrained a T5_1_1 base model using the t5x pretraining script. and i was looking forward to convert it to HF. but sadly i couldnt do it via the conversion script

the config file for the model (config.gin) is in .gin format and the conversion script expects the config file to be in a json format

@patrickvonplaten @valhalla could you please let me know on how to go pass this.