new_contents: import numpy as np
  
  class Neural:
      def __init__(self,input_size,hidden_size,output_size,weight_init_std=0.01):
          self.params={}
          self.params['W1'] = weight_init_std * np.random.randn(input_size , hidden_size)
          self.params['b1'] = np.zeros(hidden_size)
          self.params['W2'] = weight_init_std * np.random.randn(hidden_size,output_size)
          self.params['b2'] = np.zeros(output_size)
  
          
  
subject: add neural