def METHOD_NAME(self):
    # A new metadata column 'greeting' added to all images in the simulation, with the value 'hello'
    self.sim.set_metadata("greeting", "hello")
    # Get value of a metadata field for all images
    values = self.sim.get_metadata("greeting")
    # We get back 'hello' 1024 times
    self.assertTrue(np.all(np.equal(np.repeat("hello", 1024), values)))