code: def f(self, X):
      return ([0.1, 0.2, 0.3] * X**2).sum()
  
file_path: Lasagne/lasagne/tests/test_updates.py
imports: import pytest
  import numpy
  import theano
  import theano.tensor
  import lasagne
label_desc: Use image node_id 1 for calling the TestUpdateFunctions obj's underlying member method code with example usage: obj.f(X) and returns: unknown