anagram: Added template to the stub file
+use std::collections::HashSet;
+pub fn anagrams_for<'a>(word: &str, possible_anagrams: &[&str]) -> HashSet<&'a str> {
+ unimplemented!(
+ "For the '{}' word find anagrams among the following words: {:?}",
+ word,
+ possible_anagrams
+ );
+}
