All list method
The all method is used to check if all the items of a list pass a condition.
The method takes a single argument that is the function of the condition. The format is <list>.all($<name> <condition_with_$name>).
For example:
findit -w 'files.all($file $file.size > 2048) AND files.length() > 0'
will show only the directories in which all the files are larger than 2048 bytes.