code: def test_snap(self):
      # input geometries
      square = Polygon([(1, 1), (2, 1), (2, 2), (1, 2), (1, 1)])
      line = LineString([(0, 0), (0.8, 0.8), (1.8, 0.95), (2.6, 0.5)])
  
      square_coords = square.exterior.coords[:]
      line_coords = line.coords[:]
  
      result = snap(line, square, 0.5)
  
      # test result is correct
      assert isinstance(result, LineString)
      assert result.coords[:] == [
          (0.0, 0.0),
          (1.0, 1.0),
          (2.0, 1.0),
          (2.6, 0.5),
      ]
  
      # test inputs have not been modified
      assert square.exterior.coords[:] == square_coords
      assert line.coords[:] == line_coords
  
imports: import unittest
  from shapely.geometry import LineString, Polygon
  from shapely.ops import snap
label_desc: Use image node_id 1 for calling the Snap obj's underlying member method code with example usage: obj.test_snap() without return types