[yt-users] TIPSY and rockstar in yt

Hi everyone, I just started using YT and I find it to be great, thanks for making such a useful tool publicly available. Now my question, Is the rockstar finder method in the HaloCatalog function compatible with TIPSY files? Im trying to pass the TIPSY_LENGTH_CONVERSION and TIPSY_VELOCITY_CONVERSION as kwargs and it doesn't recognize them as valid. Any suggestions? Thanks in advance. Bruno