new_contents: import tensorflow as tf
  
  matrix1 = tf.constant([[3,3]])
  matrix2 = tf.constant([[2],
                                     [2]])
  
  product = tf.matmul(matrix1, matrix2)  # np.dot()
  
  # method 1
  sess = tf.Session()
  result = sess.run(product)
  print(result)
  sess.close()
  
  # method 2
  with tf.Session() as sess:
    result2 = sess.run(product)
    print(result2)
subject: create tensorflow6