How to pass values to variables declared in Power BI SQL Statement

I'm connecting to SQL server using direct query connectivity mode and diretly entering the query into SQL statement input field as shown below:

Here is the SQL statement:

DECLARE @TestId1 INT
DECLARE @TestId2 INT
SELECT
IType.Name AS IType
,COUNT(*) AS CNT
FROM 
dbo.Table1
INNER JOIN dbo.Table2 ON *****
LEFT JOIN dbo.Table3 ON *****
LEFT JOIN dbo.Table4 ON *****
LEFT JOIN dbo.Table5 ON ****
WHERE
Table2.Id IN (1,2)AND
TestId1 IN (@TestId1) AND
Table1.Id IN (@TestId2)
GROUP BY
IType.Name

I couldn't find a way to pass values for variables TestId1 and TestId2.

Please advise. Thanks in advance.