code: def exists(self, db_name: str) -> bool:
      return db_name in self.get_dict()
  
file_path: mindsdb/mindsdb/interfaces/database/database.py
imports: from typing import Optional
  from collections import OrderedDict
  from mindsdb.interfaces.database.projects import ProjectController
  import mindsdb.utilities.profiler
  from mindsdb.utilities.exception import EntityNotExistsError
label_desc: Use image node_id 6 for calling the DatabaseController obj's underlying member method code with example usage: obj.exists(db_name) and returns: unknown