new_contents: def studentReg(ages_train, net_worths_train):
      ### import the sklearn regression module, create, and train your regression
      ### name your regression reg
      
      ### your code goes here!
      from sklearn import linear_model
      
      reg = linear_model.LinearRegression()
      
      reg.fit(ages_train, net_worths_train)
      
      
      
      return reg
  
subject: Create studentreg.py