code: def _preprocess(self, lhs, rhs):
      intersects = _basic_intersects_count(lhs, rhs) > 0
      contains = rhs.contains(lhs)
      contains_any = _basic_contains_properly_any(rhs, lhs)
  
      pli = _basic_intersects_pli(lhs, rhs)
      if len(pli[1]) == 0:
          return _false_series(len(lhs))
      points = _pli_points_to_multipoints(pli)
      # A touch can only occur if the point in the intersection
      # is equal to a point in the linestring: it must
      # terminate in the boundary of the polygon.
      equals = _basic_equals_count(points, lhs) == points.sizes
  
      return equals & intersects & ~contains & ~contains_any
  
imports: import cupy
  import cudf
  from cuspatial.core.binpreds.basic_predicates import _basic_contains_count, _basic_contains_properly_any, _basic_equals_all, _basic_equals_any, _basic_equals_count, _basic_intersects, _basic_intersects_count, _basic_intersects_pli
  from cuspatial.core.binpreds.binpred_interface import BinPred, ImpossiblePredicate
  from cuspatial.core.binpreds.feature_contains import ContainsPredicate
  from cuspatial.utils.binpred_utils import LineString, MultiPoint, Point, Polygon, _false_series, _pli_points_to_multipoints, _points_and_lines_to_multipoints
label_desc: Use image node_id 1 for calling the LineStringPolygonTouches obj's underlying member method code with example usage: obj._preprocess(lhs, rhs) and returns: unknown, _false_series