local tx = require("transforms")
print( tx.first ( { 1, 1, 3, 2, 4, 7 }, function(e, i, tbl)
  local evens = 0
  for i=i,#tbl do
    if tbl[i] % 2 == 0 then
      evens = evens + 1
    else
      break
    end
  end
  return evens > 0, evens
end))