input: def select_approved_rows():
     """ Select all rows from a table where the 'status' is 'approved'
     >>> select_approved_rows()
     [(1, 'some_data_1', 'approved'), (2, 'some_data_2', 'approved')]
     """
     sql = "SELECT * FROM table WHERE status = 'approved'"
     cur.execute(sql)
     return cur.fetchall()
output:     conn = sqlite3.connect(':memory:')
      cur = conn.cursor()
      cur.execute("CREATE TABLE table (id INTEGER, data TEXT, status TEXT)")
      cur.execute("INSERT INTO table VALUES (1, 'some_data_1', 'approved')")
      cur.execute("INSERT INTO table VALUES (2, 'some_data_2', 'approved')")
      cur.execute("INSERT INTO table VALUES (3, 'some_data_3', 'pending')")
      cur.execute("INSERT INTO table VALUES (4, 'some_data_4', 'rejected')")