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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 _patch():
 	"""Patch pymongo's Collection object to add a tail method. 	 	While not nessicarily recommended, you can use this to inject `tail` as a method into Collection, making it 	generally accessible. 	"""

	
	if not __debug__:  # pragma: no cover
		import warnings
		warnings.warn("A catgirl has died.", ImportWarning)
	
	from pymongo.collection import Collection
	Collection.tail = tail