Hi ale , thanks for reply me.
It seems work to get list overrides. But when I log the information of overrides children, there is nothing to get. There is no data from override (name, width , heigh, posX, posY,...).
This is override structure from may case:
affectedLayer = "<null>";
editable = 1;
id = "A0E82177-B854-43C9-9736-212DA9B57377_symbolID";
isDefault = 1;
path = "A0E82177-B854-43C9-9736-212DA9B57377";
property = symbolID;
symbolOverride = 1;
type = Override;
value = "F6C7274A-1A6C-4AB7-BBBF-AF16E00CC550";