get bool value in code from bit return value

i want to get a bit return value from sp bit return value such this:
CREATE PROC GetBit AS BEGIN DECLARE @JJ BIT = 1; RETURN @JJ END

this code not worked :
`var _params = new DynamicParameters();
_params.Add(
name: "@JJ",
dbType: DbType.Boolean,
direction: ParameterDirection.ReturnValue
);

        IDbConnection dbConnection = new SqlConnection("Data Source=.;Initial Catalog=TestDB;Integrated Security=True");
        if (dbConnection.State != ConnectionState.Open)
            dbConnection.Open();

        await dbConnection.ExecuteAsync("GetBit",
            _params, commandType: CommandType.StoredProcedure);

        var j = _params.Get<bool>("@JJ");
        return j;`

i Don't want use QueryFirstOrDefault. i want to get a return value . because this proc called from other sp and can not use select statement.

No repository file or test is identified. Start by reproducing the stored procedure and the ExecuteAsync call with the ReturnValue parameter, then check how the returned value is exposed and converted to bool. Done means retrieving the procedure's bit return value without using SELECT or QueryFirstOrDefault.