def _g_get_link_class(parent_id, name):

    return linkextension._get_link_class(parent_id, name)
Three possible variables: raw, volume, movie, vertex. Enumerated with size:
dataset/ETHPy150Open PyTables/PyTables/tables/link.py/_g_get_link_class--crossover with--dataset/ETHPy150Open gallantlab/pycortex/cortex/dataset.py/VolumeData.__init__