code: def test_list_input(self):
      x_data = [np.array([1, 2, 3]), np.array([1, 2, 3])]
      y_data = [np.array([5, 6, 7]), np.array([4, 2, 9])]
      line_block = amp.blocks.Line(x_data, y_data)
      npt.assert_equal(line_block.y, np.array([[5, 6, 7], [4, 2, 9]]))
      npt.assert_equal(line_block.x, np.array([[1, 2, 3], [1, 2, 3]]))
  
imports: from matplotlib.testing import setup
  import numpy
  import numpy.testing
  import matplotlib.pyplot
  import matplotlib
  import packaging.version
  import pytest
  import animatplot
  from tests.tools import animation_compare
  from animatplot.blocks import Block, Title
label_desc: Use image node_id 5 for calling the TestLineBlock obj's underlying member method code with example usage: obj.test_list_input() without return types