class_docstr: Class for implementing the Maria DB handler as a backend store for
  EvaDB.
class_docstr_tok: ["Class","for","implementing","the","Maria","DB","handler","as","a","backend","store","for","EvaDB","."]
docstr: Disconnect from the database.
docstr_tok: ["Disconnect","from","the","database","."]
code: def disconnect(self):
      """
      Disconnect from the database.
      """
      if self.connection:
          self.connection.close()
  
file_path: evadb/evadb/third_party/databases/mariadb/mariadb_handler.py
imports: import mariadb
  import pandas
  from evadb.third_party.databases.types import DBHandler, DBHandlerResponse, DBHandlerStatus
label_desc: Use image node_id 3 for calling the MariaDbHandler obj's underlying member method code with example usage: obj.disconnect() without return types