class JekyllFrontMatterBlock extends Block {
    protected BasedSequence openingMarker = BasedSequence.NULL;
    protected BasedSequence closingMarker = BasedSequence.NULL;

    @Override
    public void getAstExtra(@NotNull StringBuilder out) {<FILL_FUNCTION_BODY>}

    @NotNull
    @Override
    public BasedSequence[] getSegments() {
        return new BasedSequence[] { openingMarker, closingMarker };
    }

    public JekyllFrontMatterBlock() {
    }

    public JekyllFrontMatterBlock(BasedSequence chars) {
        super(chars);
    }

    public JekyllFrontMatterBlock(Node node) {
        super();
        appendChild(node);
        this.setCharsFromContent();
    }

    public BasedSequence getOpeningMarker() {
        return openingMarker;
    }

    public void setOpeningMarker(BasedSequence openingMarker) {
        this.openingMarker = openingMarker;
    }

    public BasedSequence getContent() {
        return getContentChars();
    }

    public BasedSequence getClosingMarker() {
        return closingMarker;
    }

    public void setClosingMarker(BasedSequence closingMarker) {
        this.closingMarker = closingMarker;
    }

    public void accept(JekyllFrontMatterVisitor visitor) {
        visitor.visit(this);
    }
}

        segmentSpan(out, openingMarker, "open");
        segmentSpan(out, getContent(), "content");
        segmentSpan(out, closingMarker, "close");
    
<methods>public void <init>() ,public void <init>(@NotNull BasedSequence) ,public void <init>(@NotNull BasedSequence, @NotNull List<BasedSequence>) ,public void <init>(@NotNull List<BasedSequence>) ,public void <init>(com.vladsch.flexmark.util.ast.BlockContent) ,public @Nullable Block getParent() <variables>