ha:{root} [root] entries: 2
 li:{lst} FIRST te:{key} LAST te:{key}
  te:{key} {0}
  te:{key} {1}
  te:{key} {2}
  te:{key} {3}
 ta:{tbl} cols: 2, rows: 2
  Row 0:{}
   te:{} {00}
   te:{} {01}
  Row 1:{}
   te:{} {10}
   te:{} {11}
