code: def _init_subplot_domain(x_domain, y_domain):
      # No change to layout since domain traces are labeled individually
      subplot_ref = SubplotRef(
          subplot_type="domain",
          layout_keys=(),
          trace_kwargs={
              "domain": {"x": tuple(x_domain), "y": tuple(y_domain)}
          },
      )
  
      return (subplot_ref,)
  
file_path: catboost/contrib/python/plotly/py2/plotly/subplots.py
imports: from __future__ import absolute_import, unicode_literals
  import collections
label_desc: Use image node_id 6 for calling a global function with example usage: _init_subplot_domain(x_domain, y_domain) and returns: subplot_ref