class_docstr: Normal Proposal Distribution.
class_docstr_tok: ["Normal","Proposal","Distribution","."]
code: def __call__(self):
      return nr.normal(scale=self.s)
  
imports: from __future__ import division
  import scipy.linalg
  import numpy
  import numpy.random
label_desc: Use image node_id 1 for calling the NormalProposal obj's underlying member method code with example usage: obj.__call__() and returns: nr