Quick hack to load lid definition into engine.

api/src/opentrons/protocol_engine/create_protocol_engine.py

@@ -8,6 +8,9 @@
 from opentrons.protocol_engine.execution.error_recovery_hardware_state_synchronizer import (
     ErrorRecoveryHardwareStateSynchronizer,
 )
+from opentrons.protocol_engine.resources.labware_data_provider import (
+    LabwareDataProvider,
+)
 from opentrons.util.async_helpers import async_context_manager_in_thread
 
 from opentrons_shared_data.robot import load as load_robot
@@ -81,7 +84,7 @@ async def create_protocol_engine(
     module_data_provider = ModuleDataProvider()
     file_provider = file_provider or FileProvider()
 
-    return ProtocolEngine(
+    pe = ProtocolEngine(
         hardware_api=hardware_api,
         state_store=state_store,
         action_dispatcher=action_dispatcher,
@@ -93,6 +96,15 @@ async def create_protocol_engine(
         file_provider=file_provider,
     )
 
+    # FIX BEFORE MERGE: Something less implicit than this
+    pe.add_labware_definition(
+        await LabwareDataProvider().get_labware_definition(
+            "opentrons_flex_lid_absorbance_plate_reader_module", "opentrons", 1
+        )
+    )
+
+    return pe
+
 
 @contextlib.contextmanager
 def create_protocol_engine_in_thread(

api/src/opentrons/protocol_engine/state/labware.py

@@ -940,8 +940,10 @@ def get_deck_default_gripper_offsets(self) -> Optional[LabwareMovementOffsetData
         )
 
     def get_absorbance_reader_lid_definition(self) -> LabwareDefinition:
-        # TODO
-        raise NotImplementedError
+        # FIX BEFORE MERGE: Avoid hard-coding URI
+        return self._state.definitions_by_uri[
+            "opentrons/opentrons_flex_lid_absorbance_plate_reader_module/1"
+        ]
 
     @overload
     def get_child_gripper_offsets(