code: def validate_access_permission(self, valid_permissions):
          
  
          self.check_connection()
  
          if typepy.is_null_string(self.mode):
              raise ValueError("mode is not set")
  
          if self.mode not in valid_permissions:
              raise IOError(
                  "invalid access: expected-mode='{}', current-mode='{}'".format(
                      "' or '".join(valid_permissions), self.mode
                  )
              )
docs: :param valid_permissions:
              List of permissions that access is allowed.
          :type valid_permissions: |list|/|tuple|
          :raises ValueError: If the |attr_mode| is invalid.
          :raises IOError:
              If the |attr_mode| not in the ``valid_permissions``.
          :raises simplesqlite.NullDatabaseConnectionError:
              |raises_check_connection|