code: def lookup_ip_host(self, mac):
  		
  		res = self.lookup_by_host(mac=mac)
  		try:
  			return res["ip-address"]
  		except KeyError:
  			raise OmapiErrorAttributeNotFound()
docs: Lookup a host object with with given mac address.
  
  		@type mac: str
  		@raises ValueError:
  		@raises OmapiError:
  		@raises OmapiErrorNotFound: if no lease object with the given mac could be found
  		@raises OmapiErrorAttributeNotFound: if lease could be found, but objects lacks a ip
  		@raises socket.error: