def METHOD_NAME():
    m = UnitTetrahedronMesh()
    m.coordinates.dat.data[:] = [[0.0, 0.0, 0.0],
                                 [1.0, 0.0, 0.0],
                                 [0.4, 1.0, 0.0],
                                 [0.5, 0.6, 1.0]]
    return m