ios – The way to add a picture to firebase storage

I’m attempting to avoid wasting my consumer picture to firebase storage however I’m receiving this error

Worth of kind ‘Picture?’ has no member ‘jpegData’

How do I set my avatarImage to any knowledge to add my picture to firebase storage. I’m permitting the consumer to pick a picture after which save that picture to firebase storage. How do I arrange this code to repair my error to permit my consumer to add their picture

  @State personal var avatarItem: PhotosPickerItem?
    @State personal var avatarImage: Picture?

                PhotosPicker("Choose avatar", choice: $avatarItem, matching: .pictures)
                    
                    if let avatarImage {
                        avatarImage
                            .resizable()
                            .scaledToFit()
                            .body(width: 300, top: 300)
                        
                    }
                }
                .onChange(of: avatarItem) { _ in
                    Process {
                        if let knowledge = attempt? await avatarItem?.loadTransferable(kind: Knowledge.self) {
                            if let uiImage = UIImage(knowledge: knowledge) {
                                avatarImage = Picture(uiImage: uiImage)
                                return
                            }
                        }
                        
                        print("Failed")
                    }
                  
                    
                }
            }
        }
        
        
        
        
        
       
    }
    
    
    
    
    func AddFirebase() {
        
        var dict : Dictionary < String, Any> = [:
        ]
        
        
        let imageName = "NewPic"
        let storageRef = Storage.storage().reference()
        let imageReference = storageRef.baby(imageName)
        let selectedImage = avatarImage
        let imageData = selectedImage.jpegData(compressionQuality: 0.8)