Documentation for method
skip-at-least assembled from the following types:
method skip-at-least(Iterator: , int --> Mu)
Should skip producing
$to-skip values. The return value should be truthy if the skip was successful and falsy if there were not enough values to be skipped:
my = <a b c>.iterator;say .skip-at-least(2); say .pull-one; say .skip-at-least(20);# OUTPUT: «1␤c␤0␤»
The Iterator role implements this method as a loop calling
skip-one and returning whether it returned a truthy value sufficient number of times.