class_docstr: requires theta >=1
class_docstr_tok: ["requires","theta",">","=1"]
code: def deriv2(self, t, theta):
      tmp1 = np.log(t)
      d2 = (
          theta
          * (-1) ** (1 + theta)
          * tmp1 ** (theta - 1)
          * (1 - theta)
          + theta * (-1) ** (1 + theta) * tmp1**theta
      ) / (t**2 * tmp1)
      # d2 = (theta * tmp1**(-1 + theta) * (1 - theta) + theta * tmp1**theta
      #       ) / (t**2 * tmp1)
  
      return d2
  
imports: import warnings
  import numpy
  from scipy.special import expm1, gamma
label_desc: Use image node_id 5 for calling the TransfGumbel obj's underlying member method code with example usage: obj.deriv2(t, theta) and returns: d2