class_docstr: Univariate Normal Distribution 
class_docstr_tok: ["Univariate","Normal","Distribution"]
docstr: Returns a string representation. 
docstr_tok: ["Returns","a","string","representation","."]
code: def __str__(self):
      """Returns a string representation."""
      return "Univariate Normal: mean=%0.3f, variance=%.3f" % (
          self.mean,
          self.var,
      )
  
imports: from __future__ import absolute_import
  from __future__ import division
  import numpy
  from .distribution import Continuous
  from ..exd import domains
label_desc: Use image node_id 8 for calling the Normal obj's underlying member method code with example usage: obj.__str__() and returns: unknown