old_contents: from __future__ import division, absolute_import, print_function
  
  import numpy as np
  
  try:
      from scipy.special import ai_zeros, bi_zeros
  except ImportError:
      pass
  
  from .common import Benchmark
  
  
  class Airy(Benchmark):
      def time_ai_zeros(self):
          ai_zeros(100000)
  
      def time_bi_zeros(self):
          bi_zeros(100000)
  
  
new_contents: from __future__ import division, absolute_import, print_function
  
  import numpy as np
  
  try:
      from scipy.special import ai_zeros, bi_zeros, erf
  except ImportError:
      pass
  
  from .common import Benchmark
  
  
  class Airy(Benchmark):
      def time_ai_zeros(self):
          ai_zeros(100000)
  
      def time_bi_zeros(self):
          bi_zeros(100000)
  
  
  class Erf(Benchmark):
      def setup(self, *args):
          self.rand = np.random.rand(1e5)
  
      def time_real(self, offset):
          erf(self.rand + offset)
  
      time_real.params = [0.0, 2.0]
      time_real.param_names = ['offset']
  
subject: add special.erf benchmarks