to_cn_string (implemented in this issue)

[dmarx]

def kf_to_cn_string(curve):
    return ','.join(
        [f"{kf['t']}:({kf['value']})" 
         for kf in curve.to_dict()['curve'].values()
        ])

# vktrs
kf_to_cn_string(driving_signal_kf)

[dmarx]

^ assumes linear interpolation, need to tweak to check if that's what's being used and iterate over intermediate keyframes if yes. also would be nice if i had a way of incorporating evaluatable math strings in this whole thing..