public function can_user_view( $user_id = null ) {

		$user_id = $user_id ? $user_id : get_current_user_id();
		$result  = $this->can_user_manage( $user_id ) || $this->is_sharing_enabled();

		/**
		 * Filter whether or not a user can view a user's certificate.
		 *
		 * @since 4.5.0
		 *
		 * @param boolean               $result      Whether or not the user can view the certificate.
		 * @param int                   $user_id     WP_User ID of the user viewing the certificate.
		 * @param LLMS_User_Certificate $certificate Certificate class instance.
		 */
		return apply_filters( 'llms_certificate_can_user_view', $result, $user_id, $this );

	}