AffiliateWP - Leaderboard. Show the leaderboard via PHP function

gistfile1.php

<?php
/**
 * Add this where you'd like the leaderboard to be displayed
 */
	if ( function_exists( 'affwp_custom_show_leaderboard' ) ) {
		affwp_custom_show_leaderboard();
	}
?>

gistfile2.php

<?php

/**
 * Show affiliate leaderboard
 */
function affwp_custom_show_leaderboard() {
	$affiliatewp_leaderboard = function_exists( 'affiliatewp_leaderboard_load' ) ? affiliatewp_leaderboard_load() : null;

	if ( ! $affiliatewp_leaderboard ) {
		return;
	}

	echo '<h1>Top Affiliates</h1>';

	$args = array(
		'number'    => 10, // default
		'referrals' => 'yes', // yes (default) | no
		'visits'    => 'no', // yes | no
		'earnings'  => 'no', // yes | no
		'orderby'   => 'referrals' // referrals | visits | earnings
	);

	echo $affiliatewp_leaderboard->show_leaderboard( $args );
}

how show fillter by date? this month, july etc