code: def expected_sample():
      input_1 = [[0, 1 / 3.0], [0, 1.0], [2 / 3.0, 1.0]]
      input_3 = [[2 / 3.0, 0], [2 / 3.0, 2 / 3.0], [0, 2 / 3.0]]
      input_4 = [[1 / 3.0, 1.0], [1.0, 1.0], [1, 1 / 3.0]]
      input_6 = [[1 / 3.0, 2 / 3.0], [1 / 3.0, 0], [1.0, 0]]
      return np.concatenate([input_1, input_3, input_4, input_6])
  
imports: from numpy.testing import assert_equal, assert_allclose
  from pytest import raises, fixture, warns, mark
  import numpy
  import warnings
  from SALib.sample.morris.morris import sample, _check_group_membership, _check_if_num_levels_is_even, _compute_optimised_trajectories, _generate_p_star, _compute_b_star, _generate_trajectory, _generate_x_star
  from SALib.util import read_param_file, compute_groups_matrix, _define_problem_with_groups, _compute_delta
label_desc: Use image node_id 2 for calling a global function with example usage: expected_sample() and returns: np