I want to store multiple lines of text (text entered in TextField created using UITextView) in the Firestore.

// Multiple lines of TextField created
structureMultiLineTextField:UIViewRepresentable{
    @Binding var text: String

    func makeCoordinator()->Coordinator {
        MultiLineTextField.Coordinator (parent1:self)
    }

    func makeUIView (context:Context) - > UITextView {
        let textView = UITextView()
        textView.delegate=context.coordinator
        textView.isScrollEnabled=true
        textView.isEditable=true
        textView.isUserInteractionEnabled=true
        textView.text="xxx"
        textView.textColor=UITraitCollection.current.userInterfaceStyle==.dark?UIColor(displayP3Red:0.4, green:0.4, blue:0.4, alpha:1): .lightGray
        textView.font=.systemFont(ofSize:17)
        textView.backgroundColor=UITraitCollection.current.userInterfaceStyle==.dark?UIColor (displayP3Red:0.2, green:0.2, blue:0.2, alpha:1):UIColor (displayP3Red:0.9, green:0.9, blue:0.9, alpha:1)
        return textView
    }

    func updateUIView(_uiView:UITextView, context:Context){
    }

    class Coordinator:NSObject,UITextViewDelegate{
        var parent —MultiLineTextField

        init(parent1:MultiLineTextField) {
            parent = parent1
        }

        functextViewDidBeginEditing(_textView:UITextView){
            if self.parent.text=="{
                textView.text=""
                textView.textColor=.black
            }
        }

        internal func textViewDidEndEditing(_textView:UITextView){
            if self.parent.text=="{
                textView.text="xxx"
                textView.textColor=UITraitCollection.current.userInterfaceStyle==.dark?.darkGray:.lightGray
            }
        }
    }
}

// firestore processing, text obtained in MultiLineTextField
db.collection("xxx").document("xxx").setData([..., "text":self.text,...]){(error) in
        if error!=nil{
            print(error?.localizedDescription)!)
            return
        }
    }
}