         
         guard let services = peripheral.services else { return }
         
-        for service in services {
-            guard service.uuid == self.serviceId else { continue }
-            
+        for service in services where service.uuid == self.serviceId {
             peripheral.discoverCharacteristics(nil, for: service)
         }
     }

        }
    }
    
    fileprivate func getPeerDataCharacteristic(forPeripheral peripheral: CBPeripheral) -> CBCharacteristic? {
        return peripheral.services?.filter({ $0.uuid == self.serviceId }).first?.characteristics?.filter({ $0.uuid == self.serviceId }).first
    }
    
    // MARK: - PUBLIC METHODS
    
    /**

            self.delegate?.clink(self, didCatchError: err)
        }
        
        if characteristic.uuid == timeOfLastUpdateCharacteristic.uuid {
            guard
                let service = peripheral.services?.filter({ $0.uuid == self.serviceId }).first,
                let char = service.characteristics?.filter({ $0.uuid == self.serviceCharacteristic.uuid }).first
            else {
                return
            }
            
            peripheral.readValue(for: char)
        } else if characteristic.uuid == serviceCharacteristic.uuid {
            print("did udpate service char value")
