has_all operator is being reported as error with 3 error messages:
datatable(a:string)
["A B C a b c", "D e f D E F"]
| filter a has_all ("a", "b")
// ^ ^-----^ Expected: ';' ;; The function 'has_all' is not defined.
// ^- The expression must have the type bool.
has_alloperator is being reported as error with 3 error messages: