public ImageInterface::apply($operation, array $arguments = array())
Applies a toolkit operation to the image.
The operation is deferred to the active toolkit.
string $operation: The operation to be performed against the image.
array $arguments: (optional) An associative array of arguments to be passed to the toolkit operation; for instance,
['width' => 50, 'height' => 100, 'upscale' => TRUE]
Defaults to an empty array.
bool TRUE on success, FALSE on failure.
public function apply($operation, array $arguments = array());
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https://api.drupal.org/api/drupal/core!lib!Drupal!Core!Image!ImageInterface.php/function/ImageInterface::apply/8.1.x