PowerOfTwo([FromBody] AdvancedOperationRequestModel advancedOperationRequestModel) =>
 new OperationResponseModel
 {
     Result = Math.Pow(advancedOperationRequestModel.Number, 2),
     OperationRequestedBy = GetUserNameFromContext()
 };
 Square([FromBody] AdvancedOperationRequestModel advancedOperationRequestModel) =>
 new OperationResponseModel
 {
     Result = Math.Sqrt(advancedOperationRequestModel.Number),
     OperationRequestedBy = GetUserNameFromContext()
 };