class_docstr: Plyvel Wrapper to Interact With LevelDB Database.
  
  `LevelDB Connection Documentation <https://plyvel.readthedocs.io/en/latest/>`__
class_docstr_tok: ["Plyvel","Wrapper","to","Interact","With","LevelDB","Database",".","`","LevelDB","Connection","Documentation","<","https",":","\/\/plyvel.readthedocs.io\/en\/latest\/",">","`","__"]
docstr: Closes connection.
docstr_tok: ["Closes","connection","."]
code: def close_conn(self) -> None:
      """Closes connection."""
      db = self.db
      if db is not None:
          db.close()
          self.db = None
  
file_path: airflow/airflow/providers/google/leveldb/hooks/leveldb.py
imports: from __future__ import annotations
  from airflow.exceptions import AirflowException, AirflowOptionalProviderFeatureException
  from airflow.hooks.base import BaseHook
label_desc: Use image node_id 3 for calling the LevelDBHook obj's underlying member method code with example usage: obj.close_conn() without return types