code: function(type){
  
  	    // Default.
  	    if( typeof(type) === 'undefined' ){	type = 'all'; }
  
  	    // Select the cache.
  	    var cache_to_use = path_cache;
  	    if( type === 'full' ){
  		cache_to_use = ns_cache_full;
  	    }else if( type === 'flat' ){
  		cache_to_use = ns_cache_flat;
  	    }
  	    
  	    // Return the keys only.
  	    return us.keys(cache_to_use);
  	}
docs: /*
  Function: cached_list
  
  Returns a list of the cached files. Optionally, a subset of the total keys (as most will be stored twice--the filename and filename + full path).
  
  Parameters:
  type - *[optional]* the type of namespace keys to return, 'full', 'flat', and 'all' (default: 'all')
  
  Returns:
  list of strings