# @param groupName the name of the mesh group
# @param elementType the type of elements in the group; either of
# (SMESH.NODE, SMESH.EDGE, SMESH.FACE, SMESH.VOLUME).
# @param groupName the name of the mesh group
# @param elementType the type of elements in the group; either of
# (SMESH.NODE, SMESH.EDGE, SMESH.FACE, SMESH.VOLUME).