class_docstr: A stub classifier
code: def predict(self, X):
      return csr_matrix(
          np.ones(shape=(X.shape[0], self.label_count), dtype=int)
      )
  
file_path: scikit-multilearn/skmultilearn/base/mock.py
imports: import numpy
  from .base import MLClassifierBase
  from scipy.sparse import csr_matrix
label_desc: Use image node_id 3 for calling the MockClassifier obj's underlying member method code with example usage: obj.predict(X) and returns: csr_matrix