code: def generate_inputs(self):
      a = self.random_matrix(
          self.shape, self.dtype, scale=(1e-2, 2.0), sym=True
      )
      return (a,)
  
file_path: chainer/tests/chainer_tests/functions_tests/math_tests/test_cholesky.py
imports: import numpy
  import chainer.functions
  from chainer import testing
label_desc: Use image node_id 3 for calling the TestCholesky obj's underlying member method code with example usage: obj.generate_inputs() and returns: a