code: def eigvalsh(a, b, lower=True):
      return Eigvalsh(lower)(a, b)
  
imports: from __future__ import absolute_import, print_function, division
  import logging
  import warnings
  from six.moves import xrange
  import numpy
  from theano import tensor
  import theano.tensor
  from theano.tensor import as_tensor_variable
  from theano.gof import Op, Apply
label_desc: Use image node_id 1 for calling a global function with example usage: eigvalsh(a, b, lower) and returns: Eigvalsh