keys function will return a
list of all of the keys in one or more
types. Since a dictionary is unordered, the keys will not be in a predictable order.
They can be sorted with
keys $myDict | sortAlpha
When supplying multiple dictionaries, the keys will be concatenated. Use the
function along with
sortAlpha to get a unqiue, sorted list of keys.
``` keys $myDict $myOtherDict | uniq | sortAlphaBack to top