diff --git a/handler.hpp b/handler.hpp
index 8c36c52..d919f05 100644
--- a/handler.hpp
+++ b/handler.hpp
@@ -187,6 +187,14 @@
      */
     virtual void accelOobWrite(std::string_view name, uint64_t address,
                                uint8_t num_bytes, uint64_t data) const = 0;
+
+    /**
+     * Prase the I2C tree to get the highest level of bifurcation in target bus.
+     *
+     * @param[in] index    - PCIe Slot Index
+     * @return list of lanes taken by each device.
+     */
+    virtual std::vector<uint8_t> pcieBifurcation(uint8_t index) = 0;
 };
 
 } // namespace ipmi