ios – Easy methods to take away backside padding for customized cells utilizing MessageKit with Swift?

That is my customized cell:

class DocumentCollectionViewCell: MessageContentCell {
    // ...
    override init(body _: CGRect) {
        tremendous.init(body: .zero)
        setupView()
    }

    required init?(coder _: NSCoder) {
        nil
    }

    func configure(
        message: ChatMessageable,
        indexPath: IndexPath,
        view: MessagesCollectionView,
        theme: Themeable,
        isMe: Bool
    ) {
        // ...
        configure(with: message, at: indexPath, and: view)
    }

    non-public func setupView() {
        // ...
    }
}

and its calculator:

class DocumentCollectionViewCellSizeCalculator: MessageSizeCalculator {
    non-public let message: ChatMessageable

    non-public var measurement: CGSize {
        guard let structure = structure as? MessagesCollectionViewFlowLayout, let attachment = message.attachment else {
            return .zero
        }
        let top = attachment.sort.isDocument ? 60.0 : 110.0
        return CGSize(width: structure.itemWidth, top: top)
    }

    // MARK: - Initialization

    init(message: ChatMessageable, structure: MessagesCollectionViewFlowLayout?) {
        self.message = message
        tremendous.init(structure: structure)
        outgoingAvatarSize = .zero
        incomingMessagePadding = UIEdgeInsets(prime: 0, left: 4, backside: -15, proper: 30) //doesnt work
        outgoingMessagePadding = UIEdgeInsets(prime: 0, left: 30, backside: -15, proper: 4) //doesnt work
    }

    // MARK: - Overriden

    override func messageContainerSize(for _: MessageType) -> CGSize {
        measurement
    }

    override func sizeForItem(at _: IndexPath) -> CGSize {
        measurement
    }
}

And it appear to be this:

Pictures are my customized cells. No matter I do it doesnt change the area between them. Why? It’s only utilized for predefined cells. Not for my customized ones. Why?

In my Controller, the next technique:

func messageBottomLabelHeight(for message: MessageType, at _: IndexPath, in _: MessagesCollectionView) -> CGFloat {
    16
}

does not change something for my customized cells, in reverse to predefined cells.