should_decode example

'cookies'  => $processed_headers['cookies'],
            'filename' => $parsed_args['filename'],
        );

        // Handle redirects.         $redirect_response = WP_Http::handle_redirects( $url, $parsed_args, $response );
        if ( false !== $redirect_response ) {
            return $redirect_response;
        }

        if ( true === $parsed_args['decompress']
            && true === WP_Http_Encoding::should_decode( $processed_headers['headers'] )
        ) {
            $body = WP_Http_Encoding::decompress( $body );
        }

        $response['body'] = $body;

        return $response;
    }

    /** * Grabs the headers of the cURL request. * * Each header is sent individually to this callback, and is appended to the `$header` property * for temporary storage. * * @since 3.2.0 * * @param resource $handle cURL handle. * @param string $headers cURL request headers. * @return int Length of the request headers. */

        // If the body was chunk encoded, then decode it.         if ( ! empty( $processed_response['body'] )
            && isset( $processed_headers['headers']['transfer-encoding'] )
            && 'chunked' === $processed_headers['headers']['transfer-encoding']
        ) {
            $processed_response['body'] = WP_Http::chunkTransferDecode( $processed_response['body'] );
        }

        if ( true === $parsed_args['decompress']
            && true === WP_Http_Encoding::should_decode( $processed_headers['headers'] )
        ) {
            $processed_response['body'] = WP_Http_Encoding::decompress( $processed_response['body'] );
        }

        if ( isset( $parsed_args['limit_response_size'] )
            && strlen( $processed_response['body'] ) > $parsed_args['limit_response_size']
        ) {
            $processed_response['body'] = substr( $processed_response['body'], 0, $parsed_args['limit_response_size'] );
        }

        $response['body'] = $processed_response['body'];