void->void pipeline testNatives{
                                       //Filter produces two integers.
  add void->int filter {               
    work push 2{                       
      printf("Creating Input\n");      //Within a native filter you can use printf just like in C.
      push( 0x0F0F0F0F );              //Integers in hex format are fine
      push( 0xF0F0F0F0 );
    }
  }
  
  add int->void filter {              
    work pop 1{                        //This filter only consumes 1 integer
      int x = pop();                   //The scheduler will take care of matching the execution 
      printf("Got %x\n", x);           //of the two filters.
      printB( x );                     //printB prints the integer as a string of bits.
    }
  }

}