code: def create_scale(limit):
      return alt.Scale(domain=limit) if limit else alt.Undefined
  
imports: from __future__ import annotations
  import json
  from types import ModuleType
  from typing import Any, Callable, Literal
  import altair
  import pandas
  from gradio_client.documentation import document, set_documentation_group
  from gradio import processing_utils
  from gradio.components.base import Component
  from gradio.data_classes import GradioModel
  from gradio.events import Events
label_desc: Use image node_id 2 for calling the AltairPlot obj's underlying member method code with example usage: obj.create_scale(limit) and returns: unknown