diff --git a/chia/_tests/farmer_harvester/test_third_party_harvesters.py b/chia/_tests/farmer_harvester/test_third_party_harvesters.py
index df39739aea76..08d8ffdccc76 100644
--- a/chia/_tests/farmer_harvester/test_third_party_harvesters.py
+++ b/chia/_tests/farmer_harvester/test_third_party_harvesters.py
@@ -7,7 +7,7 @@
 import json
 import logging
 from os.path import dirname
-from typing import Any, Optional, Union, cast
+from typing import Optional, Union, cast
 
 import pytest
 from chia_rs import G1Element
@@ -25,7 +25,6 @@
 from chia.harvester.harvester import Harvester
 from chia.harvester.harvester_api import HarvesterAPI
 from chia.protocols import farmer_protocol, full_node_protocol, harvester_protocol, timelord_protocol
-from chia.protocols.farmer_protocol import RequestSignedValues
 from chia.protocols.harvester_protocol import ProofOfSpaceFeeInfo, RespondSignatures, SigningDataKind
 from chia.protocols.protocol_message_types import ProtocolMessageTypes
 from chia.server.outbound_message import Message, NodeType, make_msg
@@ -115,8 +114,9 @@ async def test_harvester_receive_source_signing_data(
     finished_validating_data = False
     farmer_reward_address = decode_puzzle_hash("txch1psqeaw0h244v5sy2r4se8pheyl62n8778zl6t5e7dep0xch9xfkqhx2mej")
 
-    async def intercept_harvester_request_signatures(*args: Any) -> Message:
-        request: harvester_protocol.RequestSignatures = harvester_protocol.RequestSignatures.from_bytes(args[0])
+    async def intercept_harvester_request_signatures(
+        self: HarvesterAPI, request: harvester_protocol.RequestSignatures
+    ) -> Optional[Message]:
         nonlocal harvester
         nonlocal farmer_reward_address
 
@@ -210,24 +210,23 @@ def validate_harvester_request_signatures(request: harvester_protocol.RequestSig
             data_hash = data.get_hash()
             assert data_hash == hash
 
-    async def intercept_farmer_new_proof_of_space(*args: Any) -> None:
+    async def intercept_farmer_new_proof_of_space(
+        self: HarvesterAPI, request: harvester_protocol.NewProofOfSpace, peer: WSChiaConnection
+    ) -> None:
         nonlocal farmer
         nonlocal farmer_reward_address
 
-        request: harvester_protocol.NewProofOfSpace = dataclasses.replace(
-            harvester_protocol.NewProofOfSpace.from_bytes(args[0]), farmer_reward_address_override=farmer_reward_address
-        )
-        peer: WSChiaConnection = args[1]
+        request = dataclasses.replace(request, farmer_reward_address_override=farmer_reward_address)
 
         await FarmerAPI.new_proof_of_space(farmer.server.api, request, peer)
 
-    async def intercept_farmer_request_signed_values(*args: Any) -> Optional[Message]:
+    async def intercept_farmer_request_signed_values(
+        self: FarmerAPI, request: farmer_protocol.RequestSignedValues
+    ) -> Optional[Message]:
         nonlocal farmer
         nonlocal farmer_reward_address
         nonlocal full_node_2
 
-        request: RequestSignedValues = RequestSignedValues.from_bytes(args[0])
-
         # Ensure the FullNode included the source data for the signatures
         assert request.foliage_block_data
         assert request.foliage_block_data.get_hash() == request.foliage_block_data_hash
@@ -255,6 +254,7 @@ async def intercept_farmer_request_signed_values(*args: Any) -> Optional[Message
                 api=farmer.server.api,
                 handler=intercept_farmer_new_proof_of_space,
                 request_type=ProtocolMessageTypes.new_proof_of_space,
+                peer_required=True,
             )
         )
         exit_stack.enter_context(