text: #!/bin/env python
  import sys
  
  if not sys.argv[1:]:
    import ncluster
    task = ncluster.make_task(instance_type='t3.micro')
    task.upload(__file__)
    task.run('pip install tensorflow')
    task.run(f'python {__file__} worker')
  elif sys.argv[1] == 'worker':
    import tensorflow as tf
    sess = tf.Session()
    ones = tf.ones((1000,1000))
    result = sess.run(tf.matmul(ones, ones))
    print(f"matmul gave {result.sum()}")
  
  