code: def reftrack_elementgrp_data(rt, role):
      
      element = rt.get_element()
      if isinstance(element, djadapter.models.Shot):
          egrp = element.sequence
      elif isinstance(element, djadapter.models.Asset):
          egrp = element.atype
      elif element is not None:
          raise TypeError("Expected the element to be either Asset or Shot. Got %s" % type(element))
      else:
          return
      if role == QtCore.Qt.DisplayRole or role == QtCore.Qt.EditRole:
          return egrp.name
docs: Return the data for the elementgrp (e.g. the Assettype or Sequence)
  
      :param rt: the :class:`jukeboxcore.reftrack.Reftrack` holds the data
      :type rt: :class:`jukeboxcore.reftrack.Reftrack`
      :param role: item data role
      :type role: QtCore.Qt.ItemDataRole
      :returns: data for the elementgrp
      :rtype: depending on role
      :raises: TypeError