class_docstr: Engine for shillelagh
class_docstr_tok: ["Engine","for","shillelagh"]
code: def get_function_names(
      cls,
      database: Database,
  ) -> list[str]:
      return super().get_function_names(database) + [
          "sleep",
          "version",
          "get_metadata",
      ]
  
imports: from __future__ import annotations
  from typing import TYPE_CHECKING
  from superset.db_engine_specs.sqlite import SqliteEngineSpec
label_desc: Use image node_id 1 for calling the ShillelaghEngineSpec obj's underlying member method code with example usage: obj.get_function_names(cls, database) and returns: unknown