     public let preferredMaximumTransmissionUnit: ATTMaximumTransmissionUnit
     
     internal private(set) var didExchangeMTU = false
-    
-    internal let connection: ATTConnection
-    
+        
     /// Whether the client is currently writing a long value.
     internal private(set) var inLongWrite: Bool = false
     

    
    /// Indications
    internal private(set) var indications = [UInt16: Notification]()
    
    // MARK: - Initialization
    

                // all data sent
                let request = ATTExecuteWriteRequest.write
                let response = try await send(request, response: ATTExecuteWriteResponse.self)
                try executeWriteResponse(response)
            }
        }
    }
    
    private func executeWriteResponse(
        _ response: ATTResponse<ATTExecuteWriteResponse>
    ) throws {
        
        inLongWrite = false
