Add pagination to a wp_query

<?php 
  echo paginate_links( array(
    base'         => str_replace( 999999999, '%#%', esc_url( get_pagenum_link( 999999999 ) ) ),
    'total'        => $query->max_num_pages,
    'current'      => max( 1, get_query_var( 'paged' ) ),
    'format'       => '?paged=%#%',
    'show_all'     => false,
    'type'         => 'plain',
    'end_size'     => 2,
    'mid_size'     => 1,
    'prev_next'    => true,
    'prev_text'    => sprintf( '<i></i> %1$s', __( 'Newer Posts', 'text-domain' ) ),
    'next_text'    => sprintf( '%1$s <i></i>', __( 'Older Posts', 'text-domain' ) ),
    'add_args'     => false,
    'add_fragment' => '',
   ) );
?>
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