1 files changed, 8 insertions, 0 deletions
diff --git a/Digitigrade/Timeline/TimelineInclusionReason.php b/Digitigrade/Timeline/TimelineInclusionReason.php
new file mode 100644
index 0000000..6ffe76d
--- /dev/null
+++ b/Digitigrade/Timeline/TimelineInclusionReason.php
@@ -0,0 +1,8 @@
+<?php
+namespace Digitigrade\Timeline;
+
+abstract class TimelineInclusionReason {
+    abstract public function renderAsHtml();
+    abstract public function toJsonReference(): mixed;
+    abstract public static function fromJsonReference(mixed $reference): self;
+}
+\ No newline at end of file