Add an instrument.py.  The basic description of it is in the docstring
at the top of the file.  The most relevant part is this:

This makes two decorators available:

@timer
@counter

@timer will time the invocation of the function/method it's decorating
and send this info to the configured statsd server

@counter will increment a counter related to the function/method it's
decorating and send this info to the configured statsd server