def METHOD_NAME(self):
    num_nodes = 1
    vars_per_nodes = 6
    num_vars = num_nodes * vars_per_nodes
    # fd/cs step size
    if TACS.dtype is complex:
        self.dh = 1e-200
        self.rtol = 1e-10
    else:
        self.dh = 1e-6
        self.rtol = 1e-2
    self.dtype = TACS.dtype
    self.atol = np.clip(1e-5 * self.rtol, 1e-14, 1e-8)
    self.print_level = 0
    self.xpts = np.zeros(3, dtype=self.dtype)
    # Set element index
    self.elem_index = 0
    # Set the simulation time
    self.time = 0.0
    # Set the variable arrays
    np.random.seed(30)  # Seed random numbers for deterministic/repeatable tests
    self.vars = np.random.rand(num_vars).astype(self.dtype)
    self.dvars = self.vars.copy()
    self.ddvars = self.vars.copy()
    # General 6 dof mass matrix
    M = np.arange(21, dtype=self.dtype)
    # General 6 dof mass matrix for point mass
    m = 2.0
    I11 = I22 = I33 = 1.0
    I12 = I13 = I23 = 0.5
    # Gravity inertial vector
    self.g = 9.81 * np.array([1.0, 1.0, 1.0], dtype=self.dtype)
    # Create constitutive classes
    self.con_objects = [
        constitutive.GeneralMassConstitutive(M=M),
        constitutive.PointMassConstitutive(
            m=m,
            I11=I11,
            I22=I22,
            I33=I33,
            I12=I12,
            I13=I13,
            I23=I23,
            mNum=0,
            I11Num=1,
            I22Num=2,
            I33Num=3,
            I12Num=4,
            I13Num=5,
            I23Num=6,
        ),
    ]
    # Set matrix types
    self.matrix_types = [
        TACS.STIFFNESS_MATRIX,
        TACS.MASS_MATRIX,
        TACS.GEOMETRIC_STIFFNESS_MATRIX,
    ]
    # Seed random number generator in tacs for consistent test results
    elements.SeedRandomGenerator(0)