def update(self, friendly_name=None, description=None, query=None):
    """ Selectively updates View information.

    Any parameters that are None (the default) are not applied in the update.

    Args:
      friendly_name: if not None, the new friendly name.
      description: if not None, the new description.
      query: if not None, a new query string for the View.
    """
    self._table._load_info()
    if query is not None:
      if isinstance(query, _query.Query):
        query = query.sql
      self._table._info['view'] = {'query': query}
    self._table.update(friendly_name=friendly_name, description=description)
Selectively updates View information.

    Any parameters that are None (the default) are not applied in the update.

    Args:
      friendly_name: if not None, the new friendly name.
      description: if not None, the new description.
      query: if not None, a new query string for the View.