Returns the item specified by the indexes.
| item-at < metabang.cl-containers:alist-container > |
| item-at < array > |
| item-at < metabang.cl-containers:array-container > |
| item-at < metabang.cl-containers::associative-array > |
| item-at < metabang.cl-containers:associative-container > |
| item-at < metabang.cl-containers:binary-search-tree > |
| item-at < metabang.cl-containers:dlist-container > |
| item-at < hash-table > |
| item-at :around < metabang.cl-containers:keyed-associative-container > |
| item-at < list > |
| item-at < metabang.cl-containers:list-container > |
| item-at < metabang.cl-containers:ring-buffer > |
| item-at < metabang.cl-containers:simple-associative-container > |
| item-at < metabang.cl-containers:sorted-list-container > |
| item-at < metabang.cl-containers:sparse-array-container > |
| item-at < metabang.cl-containers::splay-tree > |
| item-at < metabang.cl-containers:stable-associative-container > |
| item-at < metabang.cl-containers::vector-container-mixin > |