class_docstr: Exponential Distribution 
class_docstr_tok: ["Exponential","Distribution"]
docstr: Returns lambda parameter
docstr_tok: ["Returns","lambda","parameter"]
code: def get_lambda(self):
      """Returns lambda parameter"""
      return self.lam
  
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 6 for calling the Exponential obj's underlying member method code with example usage: obj.get_lambda() and returns: self