Fix missing return type error

src/Common/BaseItemList.php

@@ -67,17 +67,19 @@ public function hasIconImages(): bool
      *
      * @return $this
      */
-    public function setHasIconImages(bool $hasIconImages)
+    public function setHasIconImages(bool $hasIconImages): self
     {
         $this->hasIconImages = $hasIconImages;
+
+        return $this;
     }
 
     /**
      * Initialize the item list
      *
      * If you want to adjust the item list after construction, override this method.
      */
-    protected function init()
+    protected function init(): void
     {
     }
 

src/Common/BaseItemTable.php

@@ -51,7 +51,7 @@ public function __construct($data)
      *
      * If you want to adjust the item table after construction, override this method.
      */
-    protected function init()
+    protected function init(): void
     {
     }
 

src/Common/BaseListItem.php

@@ -38,27 +38,27 @@ public function __construct($item, BaseItemList $list)
         $this->init();
     }
 
-    abstract protected function assembleHeader(BaseHtmlElement $header);
+    abstract protected function assembleHeader(BaseHtmlElement $header): void;
 
-    abstract protected function assembleMain(BaseHtmlElement $main);
+    abstract protected function assembleMain(BaseHtmlElement $main): void;
 
-    protected function assembleFooter(BaseHtmlElement $footer)
+    protected function assembleFooter(BaseHtmlElement $footer): void
     {
     }
 
-    protected function assembleCaption(BaseHtmlElement $caption)
+    protected function assembleCaption(BaseHtmlElement $caption): void
     {
     }
 
-    protected function assembleIconImage(BaseHtmlElement $iconImage)
+    protected function assembleIconImage(BaseHtmlElement $iconImage): void
     {
     }
 
-    protected function assembleTitle(BaseHtmlElement $title)
+    protected function assembleTitle(BaseHtmlElement $title): void
     {
     }
 
-    protected function assembleVisual(BaseHtmlElement $visual)
+    protected function assembleVisual(BaseHtmlElement $visual): void
     {
     }
 
@@ -101,7 +101,7 @@ protected function createFooter(): BaseHtmlElement
     /**
      * @return ?BaseHtmlElement
      */
-    protected function createIconImage()
+    protected function createIconImage(): ?BaseHtmlElement
     {
         if (! $this->list->hasIconImages()) {
             return null;
@@ -116,8 +116,9 @@ protected function createIconImage()
         return $iconImage;
     }
 
-    protected function createTimestamp()
+    protected function createTimestamp(): ?BaseHtmlElement
     {
+        return null;
     }
 
     protected function createTitle(): BaseHtmlElement
@@ -146,7 +147,7 @@ protected function createVisual()
      *
      * If you want to adjust the list item after construction, override this method.
      */
-    protected function init()
+    protected function init(): void
     {
     }
 

src/Common/BaseStatusBar.php

@@ -24,7 +24,7 @@ public function __construct(Model $summary)
         $this->summary = $summary;
     }
 
-    abstract protected function assembleTotal(BaseHtmlElement $total);
+    abstract protected function assembleTotal(BaseHtmlElement $total): void;
 
     abstract protected function createStateBadges(): BaseHtmlElement;
 

src/Common/BaseTableRowItem.php

@@ -41,13 +41,13 @@ public function __construct($item, BaseItemTable $table = null)
         $this->init();
     }
 
-    abstract protected function assembleTitle(BaseHtmlElement $title);
+    abstract protected function assembleTitle(BaseHtmlElement $title): void;
 
-    protected function assembleColumns(HtmlDocument $columns)
+    protected function assembleColumns(HtmlDocument $columns): void
     {
     }
 
-    protected function assembleVisual(BaseHtmlElement $visual)
+    protected function assembleVisual(BaseHtmlElement $visual): void
     {
     }
 
@@ -108,7 +108,7 @@ protected function createVisual()
      *
      * If you want to adjust the list item after construction, override this method.
      */
-    protected function init()
+    protected function init(): void
     {
     }
 

src/Common/ListItemCommonLayout.php

@@ -8,13 +8,13 @@ trait ListItemCommonLayout
 {
     use CaptionDisabled;
 
-    protected function assembleHeader(BaseHtmlElement $header)
+    protected function assembleHeader(BaseHtmlElement $header): void
     {
         $header->addHtml($this->createTitle());
         $header->add($this->createTimestamp());
     }
 
-    protected function assembleMain(BaseHtmlElement $main)
+    protected function assembleMain(BaseHtmlElement $main): void
     {
         $main->addHtml($this->createHeader());
         if (! $this->isCaptionDisabled()) {