Change signature of Frame::setCore

src/Drivers/Abstract/AbstractFrame.php

@@ -4,5 +4,20 @@ namespace Intervention\Image\Drivers\Abstract;
 
 abstract class AbstractFrame
 {
-    //
+    /**
+     * Set the frame core
+     *
+     * Input is losely typed and depending on the driver.
+     * Might be GdImage or Imagick but should be open to
+     * add more drivers.
+     *
+     * @param mixed $core
+     * @return AbstractFrame
+     */
+    public function setCore($core): self
+    {
+        $this->core = $core;
+
+        return $this;
+    }
 }

src/Drivers/Gd/Frame.php

@@ -27,13 +27,6 @@ class Frame extends AbstractFrame implements FrameInterface
         return $this->core;
     }
 
-    public function setCore(GdImage $core): self
-    {
-        $this->core = $core;
-
-        return $this;
-    }
-
     public function unsetCore(): void
     {
         unset($this->core);

src/Drivers/Imagick/Frame.php

@@ -22,13 +22,6 @@ class Frame extends AbstractFrame implements FrameInterface
         return $this->core;
     }
 
-    public function setCore(Imagick $core): FrameInterface
-    {
-        $this->core = $core;
-
-        return $this;
-    }
-
     public function getSize(): SizeInterface
     {
         return new Size($this->core->getImageWidth(), $this->core->getImageHeight());

src/Interfaces/FrameInterface.php

@@ -6,6 +6,7 @@ interface FrameInterface
 {
     public function toImage(): ImageInterface;
     public function getCore();
+    public function setCore($core): FrameInterface;
     public function getSize(): SizeInterface;
     public function getDelay(): float;
     public function setDelay(float $delay): FrameInterface;