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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def hello_world(test, example, prompts):
 """A hello world test phase."""

  test.logger.info('Hello World!')
  test.measurements.widget_type = prompts.prompt(
      'What\'s the widget type? (Hint: try `MyWidget` to PASS)',
      text_input=True)
  if test.measurements.widget_type == 'raise':
    raise Exception()
  test.measurements.widget_color = 'Black'
  test.measurements.widget_size = 3
  test.measurements.specified_as_args = 'Measurement args specified directly'
  test.logger.info('Plug value: %s', example.increment())