     }
     
     /**
-    Set an image with a URL, a place holder image and options.
+    Set an image with a URL, a placaholder image and options.
     
     :param: URL              The URL of image.
     :param: placeholderImage A placeholder image when retrieving the image at URL.

    }
    
    /**
    Set an image with a URL and a place holder image.
    
    :param: URL              The URL of image.
    :param: placeholderImage A placeholder image when retrieving the image at URL.

    }
    
    /**
    Set an image with a URL, a placeholder image, options, progress handler and completion handler.
    
    :param: URL               The URL of image.
    :param: placeholderImage  A placeholder image when retrieving the image at URL.
