docs: def fill_treewidget(self, tree, parameters):
          """
          fills a QTreeWidget with nested parameters, in future replace QTreeWidget with QTreeView and call fill_treeview
          Args:
              tree: QtWidgets.QTreeWidget
              parameters: dictionary or Parameter object
              show_all: boolean if true show all parameters, if false only selected ones
          Returns:
  
          """
  
          tree.clear()
          assert isinstance(parameters, (dict, Parameter))
  
          for key, value in parameters.items():
              if isinstance(value, Parameter):
                  B26QTreeItem(tree, key, value, parameters.valid_values[key], parameters.info[key])
              else:
                  B26QTreeItem(tree, key, value, type(value), '')