I am trying to create an sql statement that is suppose to return a string and 
and integer

Mytable.sql("select mystringfield,myintfield .... )

I am trying to give the typefinormation as a class to the

TypeInformation<Tuple2<String, Long>> tpinf = new TypeHint<Tuple2<String, 

.toDataStream( , tpinf.getTypeClass() )

However I get the following error shown below.
Can someone give me an example of some working tuples for this case.

Exception in thread "main" 
org.apache.flink.api.common.functions.InvalidTypesException: Tuple needs to be 
parameterized by using generics.

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