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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 relative(self):
 		"""Identify if this URI is relative to some "current context". 		 		For example, if the protocol is missing, it's protocol-relative. If the host is missing, it's host-relative, etc. 		"""

		
		scheme = self.scheme
		
		if not scheme:
			return True
		
		return scheme.is_relative(self)