class_docstr: A single Panel
  
  Parameters
  ----------
  shrink : bool, default=True
      Whether to shrink the scales to the output of the
      statistics instead of the raw data.
code: def map(
      self, data: pd.DataFrame, layout: pd.DataFrame
  ) -> pd.DataFrame:
      data["PANEL"] = 1
      return data
  
imports: from __future__ import annotations
  import typing
  from .facet import facet, layout_null
label_desc: Use image node_id 2 for calling the facet_null obj's underlying member method code with example usage: obj.map(data, layout) and returns: data