code: def test_delete_vector_single_hash(self):
      engine = Engine(self.dim, lshashes=[UniBucket("testHash")])
      self.fill_engine(engine)
      engine.delete_vector(self.removed_value)
      self.check_delete(engine)
  
imports: import itertools
  import unittest
  import numpy
  import scipy
  from future.builtins import range
  from nearpy import Engine
  from nearpy.utils.utils import unitvec
  from nearpy.hashes import UniBucket
label_desc: Use image node_id 5 for calling the TestDelete obj's underlying member method code with example usage: obj.test_delete_vector_single_hash() without return types