new_contents: from identifier import Result
  	
  GZ_PATTERNS = [
  	'1F 8B 08 08'
  ]
  	
  class GzResolver:
  	def identify(self, stream):
  		return Result('GZ')
  	
  def load(hound):
  	hound.add_matches(GZ_PATTERNS, GzResolver())
  
subject: Create gzip_identifier.py