docs: function onPage( error, response, body ) {
  		var link;
  		var curr;
  
  		count += 1;
  		debug( '%d of %d pages resolved.', count, total );
  
  		if ( arguments.length === 1 ) {
  			debug( 'No available rate limit information.' );
  			return done( error );
  		}
  		// If this is the first response, get initial rate limit info; otherwise, update rate limit info...
  		if ( count === 1 ) {
  			ratelimit = getRateLimit( response.headers );
  		} else {
  			ratelimit = checkRateLimit( ratelimit, response.headers );
  		}
  		if ( error ) {
  			return done( error );
  		}
  		// If a user wants multiple pages, we need to parse the link header...
  		if (
  			opts.last_page > opts.page ||
  			opts.last_page === 'last'
  		) {
  			debug( 'Attempting to parse link header: %s', response.headers.link );
  			link = parseHeader( response.headers.link );
  		}
  		// Handle two cases: 1) user does not want multiple pages; 2) only one page exists (no link header => link=null)...
  		if (
  			link === void 0 || // single page
  			link === null      // no link header
  		) {
  			debug( 'Single page request.' );			
  			data = body;
  			return done();
  		}
  		// If we have a link header, we have a paginated response...
  		debug( 'Parsed link header: %s', JSON.stringify( link ) );
  
  		if ( data === void 0 ) {
  			last = lastPage( opts.last_page, +link.last.page );
  			debug( 'Last page to resolve: %d.', last );
  
  			total = getTotal( opts.page, last );
  			debug( 'Total number of pages to resolve: %d.', total );
  
  			data = createCache( total );
  			debug( 'Initialized response cache of size: %d.', total );
  		}
  		if ( link.hasOwnProperty( 'next' ) ) {
  			curr = +link.next.page - 1;
  		} else {
  			curr = +link.prev.page + 1;
  		}
  		debug( 'Current page: %d.', curr );
  
  		debug( 'Caching page results.' );
  		data[ curr-1 ] = body;
  
  		if ( curr === opts.page ) {
  			debug( 'First paginated result. Resolving %d remaining page(s).', total-count );
  			setTimeout( next( curr+1, last ), 0 ); // dezalgo'd
  		}
  		done();
  	}