Syntax
keys(hash)
Description
The keys() function will retrieve the keys from a hash and return the list in an array. The keys may only be of type boolean, int, and string.
Example
a={"name":"mwnci",
           true:1,
           7:"seven"}
println(keys(a))
foreach k in keys(a) {
    println(a[k])
}
[name, true, 7]
mwnci
1
seven