code: def test_composed(self):
      cur = self.conn.cursor()
      psycopg2.extras.execute_batch(
          cur,
          sql.SQL("insert into {0} (id, val) values (%s, %s)").format(
              sql.Identifier("testfast")
          ),
          ((i, i * 10) for i in range(1000)),
      )
      cur.execute("select id, val from testfast order by id")
      self.assertEqual(
          cur.fetchall(), [(i, i * 10) for i in range(1000)]
      )
  
imports: from datetime import date
  from .None import testutils
  import unittest
  import psycopg2
  import psycopg2.extras
  import psycopg2.extensions
  from psycopg2 import sql
label_desc: Use image node_id 5 for calling the TestExecuteBatch obj's underlying member method code with example usage: obj.test_composed() without return types