[Python] How to use score analysis with TimeFold in Python?

I cloned the employee-scheduling from timefold-quickstarts\python\ and started to adapt it to my needs. When I add score analsysis like in the documentation I get the following error:

Traceback (most recent call last):
File "SolutionManager.java", line 114, in ai.timefold.solver.core.api.solver.SolutionManager.analyze
java.lang.java.lang.ClassCastException: java.lang.ClassCastException: Cannot cast ai.timefold.jpyinterpreter.types.PythonLikeType to org.jpyinterpreter.user.employee_scheduling.domain.EmployeeSchedule

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
File "SolutionManager.java", line 114, in ai.timefold.solver.core.api.solver.SolutionManager.analyze
Exception: Java Exception

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
File "<frozen runpy>", line 198, in _run_module_as_main
File "<frozen runpy>", line 88, in _run_code
File "D:\Timefold\timefold-quickstarts\python\employee-scheduling\.venv\Scripts\run-app.exe\__main__.py", line 4, in <module>
File "D:\Timefold\timefold-quickstarts\python\employee-scheduling\src\employee_scheduling\__init__.py", line 3, in <module>
from .rest_api import app
File "D:\Timefold\timefold-quickstarts\python\employee-scheduling\src\employee_scheduling\rest_api.py", line 7, in <module>
from .solver import solver_manager, solution_manager
File "D:\Timefold\timefold-quickstarts\python\employee-scheduling\src\employee_scheduling\solver.py", line 22, in <module>
score_analysis = solution_manager.analyze(EmployeeSchedule)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "D:\Timefold\timefold-quickstarts\python\employee-scheduling\.venv\Lib\site-packages\timefold\solver\_solution_manager.py", line 89, in analyze
return ScoreAnalysis(self._delegate.analyze(convert_to_java_python_like_object(solution)))
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
java.lang.java.lang.IllegalStateException: java.lang.IllegalStateException: The property (score) getterMethod (public ai.timefold.solver.core.api.score.buildin.hardsoftbigdecimal.HardSoftBigDecimalScore org.jpyinterpreter.user.employee_scheduling.domain.EmployeeSchedule.getScore()) on bean of class (class ai.timefold.jpyinterpreter.types.PythonLikeType) throws an exception.


Pretty much the same occurs when using solution_manager.explain(EmployeeSchedule).

Here is my domain.py:

from timefold.solver import SolverStatus
from timefold.solver.domain import *
from timefold.solver.score import HardSoftDecimalScore
from datetime import datetime, date
from typing import Annotated
from pydantic import Field
from .json_serialization import *

# problem facts
class Employee(JsonDomainBase):
name: Annotated[str, PlanningId]
skills: Annotated[set[str], Field(default_factory=set)]
integration: str
max_nightshifts_in_a_row: str
min_nightshifts_in_a_row: str
unavailable_dates: Annotated[set[date], Field(default_factory=set)]
undesired_dates: Annotated[set[date], Field(default_factory=set)]
desired_dates: Annotated[set[date], Field(default_factory=set)]

@planning_entity
class Shift(JsonDomainBase):
id: Annotated[str, PlanningId]
start: datetime
end: datetime
#location: str
required_skill: str
shift_name: str
shift_type: str
employee: Annotated[Employee | None,
PlanningVariable,
Field(default=None)]

@planning_solution
class EmployeeSchedule(JsonDomainBase):
employees: Annotated[list[Employee], ProblemFactCollectionProperty, ValueRangeProvider]
shifts: Annotated[list[Shift], PlanningEntityCollectionProperty]
score: Annotated[HardSoftDecimalScore | None,
PlanningScore, ScoreSerializer, ScoreValidator, Field(default=None)]
solver_status: Annotated[SolverStatus | None, Field(default=None)]


and this is my solver.py

from timefold.solver import SolverManager, SolverFactory, SolutionManager
from timefold.solver.config import (SolverConfig, ScoreDirectorFactoryConfig,
TerminationConfig, Duration)
from .domain import *
from .constraints import define_constraints


solver_config = SolverConfig(
solution_class=EmployeeSchedule,
entity_class_list=[Shift],
score_director_factory_config=ScoreDirectorFactoryConfig(
constraint_provider_function=define_constraints
),
termination_config=TerminationConfig(
spent_limit=Duration(seconds=30)
)
)

solver_manager = SolverManager.create(SolverFactory.create(solver_config))
solution_manager = SolutionManager.create(solver_manager)
score_analysis = solution_manager.analyze(EmployeeSchedule)
print(score_analysis.summary)


How do I use score anaysis/explaination in python or is not supported?

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