code: def regressor(estimator):
      """
      Wrap a third-party regressor to make it available to Yellowbrick visualizers.
  
      Parameters
      ----------
      estimator : object
          The non-sklearn regressor to wrap and use for Visualizers
      """
      return wrap(estimator, REGRESSOR)
  
file_path: yellowbrick/yellowbrick/contrib/wrapper.py
imports: from yellowbrick.exceptions import YellowbrickAttributeError
label_desc: Use image node_id 3 for calling a global function with example usage: regressor(estimator) and returns: wrap