insert_text
Description:
Inserts text at position in the list of strings stored in this.
Note:
Use [class@Gtk.DropDown]
If position is negative then text is appended.
This is the same as calling [method@Gtk.ComboBoxText.insert] with a null ID string.
Parameters:
| this |
A `GtkComboBoxText` |
| position |
An index to insert |
| text |
A string |