--- a/src/heatmap.h	Tue Feb 25 18:22:55 2025 +0100
+++ b/src/heatmap.h	Tue Feb 25 18:46:17 2025 +0100
@@ -26,6 +26,7 @@
 #define HEATMAP_H
 
 #include <map>
+#include <array>
 #include <string>
 #include <chrono>
 
@@ -53,6 +54,12 @@
     [[nodiscard]] const auto& data() const {
         return m_heatmap;
     }
+
+    [[nodiscard]] std::array<unsigned int, 12> commits_per_month(
+        const std::string &repo,
+        const std::string& author,
+        std::chrono::year year
+    ) const;
 };
 
 }