sign_request_aws($signable->native, $signing_config->native, function($result, $error_code) use ($on_complete) { $signing_result = SigningResult::fromNative($result); $on_complete($signing_result, $error_code); }, null); } static function testVerifySigV4ASigning($signable, $signing_config, $expected_canonical_request, $signature, $ecc_key_pub_x, $ecc_key_pub_y) { return self::$crt->test_verify_sigv4a_signing($signable, $signing_config, $expected_canonical_request, $signature, $ecc_key_pub_x, $ecc_key_pub_y); } }