code: def read_model(model_filename):
      """Reads a model XML file and returns its contents as a string."""
      return resources.GetResource(
          os.path.join(_SUITE_DIR, model_filename)
      )
  
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  import os
  from dm_control.utils import resources
label_desc: Use image node_id 1 for calling a global function with example usage: read_model(model_filename) and returns: resources