old_contents: import json
  import os
  import requests
  
  from app import router
  
  twitter = requests.get(
      'https://stream.twitter.com/1.1/statuses/sample.json',
      auth=(os.environ['EMIT_USERNAME'], os.environ['EMIT_PASSWORD']),
      stream=True
  )
  
  for line in twitter.iter_lines():
      if line: # filter out keep-alive lines
          router(response=json.loads(line))
  
new_contents: import json
  import os
  import requests
  
  from app import router
  
  twitter = requests.get(
      'https://stream.twitter.com/1.1/statuses/sample.json',
      auth=(os.environ['EMIT_USERNAME'], os.environ['EMIT_PASSWORD']),
      stream=True
  )
  
  for line in twitter.iter_lines():
      if line:  # filter out keep-alive lines
          router(response=json.loads(line))
  
subject: fix pep8 errors in examples/twitter/kickoff.py