class_docstr: Calls :meth:`orion.core.io.database.AbstractDB.drop_index`.
docstr: Test with single and compound indexes.
docstr_tok: ["Test","with","single","and","compound","indexes","."]
code: def test_drop_ordered_index(self, orion_db, db_test_data):
      """Test with single and compound indexes."""
      keys, stored_keys, index_information = db_test_data
      orion_db.ensure_index("experiments", keys, unique=True)
      assert (
          orion_db.index_information("experiments") == index_information
      )
      orion_db.drop_index("experiments", stored_keys)
      assert orion_db.index_information("experiments") == {"_id_": True}
  
imports: import pickle
  from datetime import datetime
  import pytest
  from orion.core.io.database import Database, DatabaseError, DuplicateKeyError
  from orion.core.io.database.ephemeraldb import EphemeralDB
  from orion.core.io.database.mongodb import MongoDB
  from orion.core.io.database.pickleddb import PickledDB
  from .conftest import insert_test_collection
label_desc: Use image node_id 3 for calling the TestDropIndex obj's underlying member method code with example usage: obj.test_drop_ordered_index(orion_db, db_test_data) without return types