code: def remove(self, key):
          '''
          remove key from the namespace.  it is fine to remove a key multiple times.
          '''
          encodedKey = json.dumps(key)
          sql = 'DELETE FROM ' + self.table + ' WHERE name = %s'
          with self.connect() as conn:
              with doTransaction(conn):
                  return executeSQL(conn, sql, args=[encodedKey]f remove(self, key):
          '''
          remove key from the namespace.  it is fine to remove a key multiple times.
          '''
          encodedKey = json.dumps(key)
          sql = 'DELETE FROM ' + self.table + ' WHERE name = %s'
          with self.connect() as conn:
              with doTransaction(conn):
                  return executeSQL(conn, sql, args=[encodedKey])
docs: remove key from the namespace.  it is fine to remove a key multiple times.