diff --git a/packages/testing/src/execution_testing/forks/forks/forks.py b/packages/testing/src/execution_testing/forks/forks/forks.py
index 72624785d2..111db3b4fb 100644
--- a/packages/testing/src/execution_testing/forks/forks/forks.py
+++ b/packages/testing/src/execution_testing/forks/forks/forks.py
@@ -3355,6 +3355,31 @@ def is_deployed(cls) -> bool:
         """Return True if this fork is deployed."""
         return False
 
+    @classmethod
+    def valid_opcodes(
+        cls, *, block_number: int = 0, timestamp: int = 0
+    ) -> List[Opcodes]:
+        """Add SLOTNUM opcode for Amsterdam (EIP-7843)."""
+        return [Opcodes.SLOTNUM] + super(Amsterdam, cls).valid_opcodes(
+            block_number=block_number, timestamp=timestamp
+        )
+
+    @classmethod
+    def opcode_gas_map(
+        cls, *, block_number: int = 0, timestamp: int = 0
+    ) -> Dict[OpcodeBase, int | Callable[[OpcodeBase], int]]:
+        """Add SLOTNUM opcode gas cost for Amsterdam (EIP-7843)."""
+        gas_costs = cls.gas_costs(
+            block_number=block_number, timestamp=timestamp
+        )
+        base_map = super(Amsterdam, cls).opcode_gas_map(
+            block_number=block_number, timestamp=timestamp
+        )
+        return {
+            **base_map,
+            Opcodes.SLOTNUM: gas_costs.G_BASE,
+        }
+
     @classmethod
     def engine_new_payload_version(
         cls, *, block_number: int = 0, timestamp: int = 0
@@ -3381,28 +3406,3 @@ def header_slot_number_required(
         """Slot number in header required from Amsterdam (EIP-7843)."""
         del block_number, timestamp
         return True
-
-    @classmethod
-    def opcode_gas_map(
-        cls, *, block_number: int = 0, timestamp: int = 0
-    ) -> Dict[OpcodeBase, int | Callable[[OpcodeBase], int]]:
-        """Add SLOTNUM opcode gas cost for Amsterdam (EIP-7843)."""
-        gas_costs = cls.gas_costs(
-            block_number=block_number, timestamp=timestamp
-        )
-        base_map = super(Amsterdam, cls).opcode_gas_map(
-            block_number=block_number, timestamp=timestamp
-        )
-        return {
-            **base_map,
-            Opcodes.SLOTNUM: gas_costs.G_BASE,
-        }
-
-    @classmethod
-    def valid_opcodes(
-        cls, *, block_number: int = 0, timestamp: int = 0
-    ) -> List[Opcodes]:
-        """Add SLOTNUM opcode for Amsterdam (EIP-7843)."""
-        return [Opcodes.SLOTNUM] + super(Amsterdam, cls).valid_opcodes(
-            block_number=block_number, timestamp=timestamp
-        )