class_docstr: Base class for database handlers
  
  Base class for handlers that associate a source of information with the
  broader MindsDB ecosystem via SQL commands.
docstr: Return list of entities
  
  Return list of entities that will be accesible as tables.
  
  Returns:
      HandlerResponse: shoud have same columns as information_schema.tables
          (https://dev.mysql.com/doc/refman/8.0/en/information-schema-tables-table.html)
          Column 'TABLE_NAME' is mandatory, other is optional.
code: def get_tables(self) -> HandlerResponse:
      """Return list of entities
  
      Return list of entities that will be accesible as tables.
  
      Returns:
          HandlerResponse: shoud have same columns as information_schema.tables
              (https://dev.mysql.com/doc/refman/8.0/en/information-schema-tables-table.html)
              Column 'TABLE_NAME' is mandatory, other is optional.
      """
      raise NotImplementedError()
  
imports: import ast
  import inspect
  import textwrap
  from _ast import AnnAssign, AugAssign
  from typing import Any, Dict, List, Optional
  import pandas
  from mindsdb_sql.parser.ast.base import ASTNode
  from mindsdb.utilities import log
  from mindsdb.integrations.libs.response import HandlerResponse, HandlerStatusResponse
label_desc: Use image node_id 7 for calling the BaseHandler obj's underlying member method code with example usage: obj.get_tables() without return types