code: def exists(self):
          
          table_client = self._instance._client.table_admin_client
          try:
              table_client.get_table(name=self.name, view=VIEW_NAME_ONLY)
              return True
          except NotFound:
              return False
docs: Check whether the table exists.
  
          For example:
  
          .. literalinclude:: snippets_table.py
              :start-after: [START bigtable_check_table_exists]
              :end-before: [END bigtable_check_table_exists]
  
          :rtype: bool
          :returns: True if the table exists, else False.