code: def _r2_score(y_true, y, multioutput=None):
      from sklearn.metrics import r2_score
  
      return r2_score(y_true, y, multioutput=multioutput)
  
imports: import numbers
  import numpy
  from scipy.stats import pearsonr
  from ..fixes import pinv
  from ..utils import _validate_type, fill_doc, verbose
  from .base import BaseEstimator, _check_estimator, get_coef
  from .time_delaying_ridge import TimeDelayingRidge
label_desc: Use image node_id 7 for calling a global function with example usage: _r2_score(y_true, y, multioutput) and returns: r2_score