Argument of type 'Task<InterviewReportModel?>' cannot be used for parameter 'returnThis' of type 'Task<InterviewReportModel>' in 'ConfiguredCall SubstituteExtensions.Returns<Task<InterviewReportModel>>(Task<InterviewReportModel> value, Task<InterviewReportModel> returnThis, params Task<InterviewReportModel>[] returnThese)' due to differences in the nullability of reference types.

The field 'Report.isInitialized' is assigned but its value is never used

Argument of type 'Task<InterviewReportModel?>' cannot be used for parameter 'returnThis' of type 'Task<InterviewReportModel>' in 'ConfiguredCall SubstituteExtensions.Returns<Task<InterviewReportModel>>(Task<InterviewReportModel> value, Task<InterviewReportModel> returnThis, params Task<InterviewReportModel>[] returnThese)' due to differences in the nullability of reference types.