text: from tests.data_source_tests import *
  from tests.structures_tests import *
  from tests.activation_functions_tests import *
  from tests.cost_functions import *
  from tests.gradient_descent_tests import *
  from tests.back_propagation_tests import *
  from tests.compute_gradients_tests import *
  from tests.datasets_tests import *
  from tests.helper_tests import *
  from tests.digit_drawing_tests import *
  from tests.layer_tests import *
  from tests.neural_net import *
  
  
  if __name__ == '__main__':
      unittest.main()
  