LengthAwarePaginator interface LengthAwarePaginator implements
int currentPage() Determine the current page being paginated.
string|null previousPageUrl() Get the URL for the previous page, or null
int perPage() Determine how many items are being shown per page.
int firstItem() Get the "index" of the first item being paginated.
$this|string fragment(string|null $fragment = null) Get / set the URL fragment
int lastPage() Get the page number of the last available page.
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