docs: def insert_keys(self, keys):
          """Insert keys into a table which assigns an ID"""
          start = 0
          bulk_insert = self.bulk_insert
          keys_len = len(keys)
          query = 'INSERT IGNORE INTO gauged_keys (namespace, `key`) VALUES '
          execute = self.cursor.execute
          while start < keys_len:
              rows = keys[start:start+bulk_insert]
              params = [param for params in rows for param in params]
              insert = '(%s,%s),' * (len(rows) - 1) + '(%s,%s)'
              execute(query + insert, params)
              start += bulk_insert