Ruby 3.1: Hash

(ｅａｃｈ) each (ｅａｃｈ＿ｗｉｔｈ＿ｏｂｊｅｃｔ) each_with_object (ｉｎｃｌｕｄｅ？) include? (ｒｅｖｅｒｓｅ＿ｅａｃｈ) reverse_each (［］＝) []= (ｈａｓ＿ｋｅｙ？) has_key? (＜) < (ｐａｒｔｉｔｉｏｎ) partition (ｃｏｍｐａｃｔ) compact (ｔｏ＿ｈａｓｈ) to_hash (ｉｎｊｅｃｔ) inject (ｋｅｙ) key (ｓｈｉｆｔ) shift (ｖａｌｕｅｓ＿ａｔ) values_at (ｈａｓ＿ｖａｌｕｅ？) has_value? (ｃｏｌｌｅｃｔ) collect (ｌａｚｙ) lazy (ｆｅｔｃｈ) fetch (ｃｙｃｌｅ) cycle (ｋｅｅｐ＿ｉｆ) keep_if (ａｓｓｏｃ) assoc (ｆｌａｔ＿ｍａｐ) flat_map (ｕｎｉｑ) uniq (ｇｒｅｐ) grep (ｒｅｊｅｃｔ) reject (ｃｈｕｎｋ) chunk (ｄｅｃｏｎｓｔｒｕｃｔ＿ｋｅｙｓ) deconstruct_keys (ｄｒｏｐ) drop (ｓｕｍ) sum (ｅａｃｈ＿ｐａｉｒ) each_pair (ｉｎｖｅｒｔ) invert (ｓｏｒｔ＿ｂｙ) sort_by (ｓｏｒｔ) sort (ｍｉｎｍａｘ＿ｂｙ) minmax_by (ｔａｋｅ) take (ｆｉｌｔｅｒ) filter (ｔｏ＿ｈ) to_h (ｆｉｌｔｅｒ＿ｍａｐ) filter_map (ｍｅｍｂｅｒ？) member? (ｃｏｌｌｅｃｔ＿ｃｏｎｃａｔ) collect_concat (ｔｏ＿ａ) to_a (ｆｉｎｄ＿ａｌｌ) find_all (ｅａｃｈ＿ｗｉｔｈ＿ｉｎｄｅｘ) each_with_index (ｆｉｎｄ) find (ｏｎｅ？) one? (ｅａｃｈ＿ｓｌｉｃｅ) each_slice (ｓｉｚｅ) size (ｆｅｔｃｈ＿ｖａｌｕｅｓ) fetch_values (ｅａｃｈ＿ｋｅｙ) each_key (ｖａｌｕｅｓ) values (ｓｌｉｃｅ＿ｂｅｆｏｒｅ) slice_before (ｅａｃｈ＿ｃｏｎｓ) each_cons (ｋｅｙ？) key? (ｒａｓｓｏｃ) rassoc (ｍｉｎ＿ｂｙ) min_by (ｍｉｎｍａｘ) minmax (ｄｅｆａｕｌｔ＿ｐｒｏｃ) default_proc (ｅａｃｈ＿ｅｎｔｒｙ) each_entry (ｃｏｍｐａｃｔ！) compact! (ｍａｘ＿ｂｙ) max_by (＞) > (ｆｉｎｄ＿ｉｎｄｅｘ) find_index (ｓｌｉｃｅ＿ａｆｔｅｒ) slice_after (ｎｏｎｅ？) none? (ｃｏｍｐａｒｅ＿ｂｙ＿ｉｄｅｎｔｉｔｙ) compare_by_identity (ｓｌｉｃｅ) slice (ｄｅｌｅｔｅ＿ｉｆ) delete_if (ｆｉｒｓｔ) first (ｓｌｉｃｅ＿ｗｈｅｎ) slice_when (ｍａｘ) max (ｇｒｏｕｐ＿ｂｙ) group_by (ｄｅｆａｕｌｔ＝) default= (ｆｌａｔｔｅｎ) flatten (ｓｅｌｅｃｔ！) select! (ｍｅｒｇｅ) merge (ｓｅｌｅｃｔ) select (ｄｅｔｅｃｔ) detect (ａｎｙ？) any? (ｍａｐ) map (ｃｏｕｎｔ) count