php/WP_CLI/WpHttpCacheManager.php
public function whitelist_url( $url, $key = null, $ttl = null ) {
		$key                     = $key ? : $url;
		$this->whitelist[ $url ] = compact( 'key', 'ttl' );
	}
public function whitelist_url( $url, $key = null, $ttl = null ) {
		$key                     = $key ? : $url;
		$this->whitelist[ $url ] = compact( 'key', 'ttl' );
	}
public function whitelist_url ( $ url , $ key = null , $ ttl = null ) { $ key = $ key ? : $ url ; $ this -> whitelist [ $ url ] = compact ( 'key' , 'ttl' ) ; }
whitelist a url

@param string $url
@param string $key
@param int    $ttl
whitelist a url