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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 fingerprint_target(self, target):
 """Consumers of subclass instances call this to get a fingerprint labeled with the name"""

    fingerprint = self.compute_fingerprint(target)
    if fingerprint:
      return '{fingerprint}-{name}'.format(fingerprint=fingerprint, name=type(self).__name__)
    else:
      return None