Code Duplication    Length = 7-7 lines in 2 locations

app/WP_Bootstrap_Navwalker.php 2 locations

@@ 47-53 (lines=7) @@
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 */
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    public function start_lvl(&$output, $depth = 0, $args = array())
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    {
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        if (isset($args->item_spacing) && 'discard' === $args->item_spacing) {
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            $t = '';
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            $n = '';
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        } else {
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            $t = "\t";
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            $n = "\n";
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        }
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        $indent = str_repeat($t, $depth);
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        // Default class to add to the file.
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        $classes = array( 'dropdown-menu' );
@@ 104-110 (lines=7) @@
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    public function start_el(&$output, $item, $depth = 0, $args = array(), $id = 0)
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    {
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        if (isset($args->item_spacing) && 'discard' === $args->item_spacing) {
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            $t = '';
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            $n = '';
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        } else {
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            $t = "\t";
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            $n = "\n";
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        }
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        $indent = ($depth) ? str_repeat($t, $depth) : '';
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        $classes = empty($item->classes) ? array() : (array) $item->classes;