>>> from PySide6.QtSql import QSqlTableModel, QSqlQueryModel   
>>> a = QSqlTableModel()

>>> a.query()
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
AttributeError: 'PySide6.QtSql.QSqlTableModel' object has no attribute 'query'

>>> b = QSqlQueryModel()
>>> b.query()
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
AttributeError: 'PySide6.QtSql.QSqlQueryModel' object has no attribute 'query'