     
     public static var attributeOpcode: ATT.Opcode { return .readMultipleRequest }
     
-    /// Minimum length
-    internal static let length = 1 + 4
-    
     /// The handles of the attributes to read.
     public var handles: [UInt16]
     

            handles.append(handle)
        }
        
        self.handles = handles
    }
    
    public var data: Data {
        
        var handlesBytes = Data(repeating: 0, count: handles.count * 2)
        
        for handle in handles {
            
            let handleBytes = handle.littleEndian.bytes
            
            let handleByteIndex = handles.count * 2
            
            handlesBytes[handleByteIndex] = handleBytes.0
            
            handlesBytes[handleByteIndex + 1] = handleBytes.1
        }
        
        return Data([type(of: self).attributeOpcode.rawValue]) + handlesBytes
    }
}

        
        self.handles = handles
    }
}

public extension ATTReadMultipleRequest {
    
    public init?(data: Data) {
        
        guard data.count >= 5,
            type(of: self).validateOpcode(data)
            else { return nil }
        
