src/Ciconia/Ciconia.php
public function removeExtension($extension)
    {
        if ($extension instanceof ExtensionInterface) {
           $extension = $extension->getName();
        }

        $this->extensions->remove($extension);

        return $this;
    }
public function removeExtension($extension)
    {
        if ($extension instanceof ExtensionInterface) {
           $extension = $extension->getName();
        }

        $this->extensions->remove($extension);

        return $this;
    }
@param string|object $extension

@return Ciconia