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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def config_treeview(self):
 """Sets treeview columns and other params"""

        tree = self.treeview
        tree.bind('<Double-1>', self.on_treeview_double_click)
        tree.bind('<<TreeviewSelect>>', self.on_treeview_select, add='+')