def METHOD_NAME(self):  # pylint: disable=unused-argument
    """Initialize the profile."""
    # pylint: disable=attribute-defined-outside-init
    n_atoms = 5
    n_steps = 30
    self.symbols = [chr(_) for _ in range(ord('A'), ord('A') + n_atoms)]
    self.positions = np.array(np.arange(n_steps * n_atoms * 3).reshape(n_steps, n_atoms, 3), dtype=float)