echo "Welcome to child!"
set child_only "this is local"
echo "In here var        is ${var}"
echo "... and __FILE__   is ${__FILE__}"
echo "... and other      is ${other}"
echo "... and child_only is ${child_only}"
echo "Bye bye!"
assertv "child.bxt$" "${__FILE__}"
assertv "^this shouldn't change$" "${other}"
assertv "^overriden$" "${var}"
assertv "^this is local$" "${child_only}"
set retval "child"
return retval