code: def drop_alembic_version_table():
      
      if _db.engine.dialect.has_table(_db.engine, 'alembic_version'):
          alembic_version = _db.Table('alembic_version', _db.metadata,
                                      autoload_with=_db.engine)
          alembic_version.drop(bind=_db.engine)
docs: Drop alembic_version table.