default @Nullable Component substitute() { // TODO: maybe make this be only for component claims?
    return null;
  }
Provide a substitute for this component's actual children.

<p>This allows modifying tags to output original data while still transforming the created components.</p>

@return a potential substitute
@since 4.13.0
text-minimessage/src/main/java/net/kyori/adventure/text/minimessage/internal/serializer/Emitable.java