code: def test_parser_loads_a_valid_tree(self, parser):
      parsed = parser.parse("I saw the man with the telescope")
      tree = next(parsed)
  
      assert isinstance(tree, Tree)
      assert (
          tree.pformat()
          == """
  (S1
    (S
      (NP (PRP I))
      (VP
        (VBD saw)
        (NP (DT the) (NN man))
        (PP (IN with) (NP (DT the) (NN telescope))))))
  """.strip()
      )
  
file_path: nltk/nltk/test/unit/test_bllip.py
imports: import pytest
  from nltk.data import find
  from nltk.parse.bllip import BllipParser
  from nltk.tree import Tree
label_desc: Use image node_id 1 for calling the TestBllipParser obj's underlying member method code with example usage: obj.test_parser_loads_a_valid_tree(parser) without return types