code: def test_truncate_single_sequence_default_trunc_end():
      seq = [
          ["abc", "def", "ghi", "jkl", "mno", "pqr", "stu", "vwx", "yz"]
      ]
      trunc_seq = truncate_sequences(seq, 8)
      assert trunc_seq == [
          ["abc", "def", "ghi", "jkl", "mno", "pqr", "stu", "vwx"]
      ]
  
imports: from jiant.tasks.utils import truncate_sequences
label_desc: Use image node_id 2 for calling a global function with example usage: test_truncate_single_sequence_default_trunc_end() without return types