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/*
 * Load an Imlib2::Image from a file (no caching, exception, or error).
 *
 * Imlib2::Image::load_without_cache() provides access to the low-level
 * imlib_load_image_without_cache() function.  You probably want to use 
 * Imlib2::Image::load() instead of this function.
 *
 * Examples:
 *   image = Imlib2::Image.load_without_cache 'sample_file.png'
 *
 */
static VALUE image_load_without_cache(VALUE klass, VALUE filename) {