/**
 * Check if the hostname contains a private IP address
 * This function is used to detect obvious SSRF attacks (with a private IP address being used as the hostname)
 *
 * Examples
 * http://192.168.0.1/some/path
 * http://[::1]/some/path
 * http://localhost/some/path
 *
 * This function gets to see "192.168.0.1", "[::1]", and "localhost"
 *
 * We won't flag this-domain-points-to-a-private-ip.com
 * This will be handled by the inspectDNSLookupCalls function
 */
export declare function containsPrivateIPAddress(hostname: string): boolean;