To elaborate on my last comment:

- touch_import looks for the required import binding in any scope, and it 
will add a global import if not found, otherwise it leaves it alone
- the import added does not have a newline prefix, so if the newlines were 
left in, (without [1:]) the tests would fail.
  However, I found that the test cases are easier to read if they all 
start on the same indentation level, so adding a newline for the reader 
but telling the parser to ignore it makes readable, correct test cases.