protected function _revoke_token() {

		$url = $this->get_api_domain().'/oauth/v2/token/revoke';
		$params = array(
			'httpversion' => '1.1',
			'blocking'    => true,
			'headers' => array(),
			'body'    => array( 'token' => $this->get_zoho_refresh_token() ),
			'cookies' => array()
		);

		$response = wp_remote_post($url, $params);

		if ( is_wp_error( $response ) ) {
			$error_message = $response->get_error_message();
			die("Error: $error_message");
		}

	}